Focal Length - MCAT Physical

Card 0 of 21

Question

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Answer

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature.

$f = \frac{1}{2}R_c$

Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length.

$f=\frac{1}{2}Rc=\frac{1}{2}0.85m=0.43m$

0.43m is equal to 43cm.

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Question

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Answer

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Compare your answer with the correct one above

Question

A lens has a focal length of . What is the strength and type of lens?

Answer

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Compare your answer with the correct one above

Question

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Answer

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature.

$f = \frac{1}{2}R_c$

Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length.

$f=\frac{1}{2}Rc=\frac{1}{2}0.85m=0.43m$

0.43m is equal to 43cm.

Compare your answer with the correct one above

Question

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Answer

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Compare your answer with the correct one above

Question

A lens has a focal length of . What is the strength and type of lens?

Answer

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Compare your answer with the correct one above

Question

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Answer

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature.

$f = \frac{1}{2}R_c$

Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length.

$f=\frac{1}{2}Rc=\frac{1}{2}0.85m=0.43m$

0.43m is equal to 43cm.

Compare your answer with the correct one above

Question

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Answer

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Compare your answer with the correct one above

Question

A lens has a focal length of . What is the strength and type of lens?

Answer

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Compare your answer with the correct one above

Question

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Answer

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature.

$f = \frac{1}{2}R_c$

Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length.

$f=\frac{1}{2}Rc=\frac{1}{2}0.85m=0.43m$

0.43m is equal to 43cm.

Compare your answer with the correct one above

Question

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Answer

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Compare your answer with the correct one above

Question

A lens has a focal length of . What is the strength and type of lens?

Answer

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Compare your answer with the correct one above

Question

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Answer

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature.

$f = \frac{1}{2}R_c$

Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length.

$f=\frac{1}{2}Rc=\frac{1}{2}0.85m=0.43m$

0.43m is equal to 43cm.

Compare your answer with the correct one above

Question

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Answer

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Compare your answer with the correct one above

Question

A lens has a focal length of . What is the strength and type of lens?

Answer

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Compare your answer with the correct one above

Question

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Answer

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature.

$f = \frac{1}{2}R_c$

Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length.

$f=\frac{1}{2}Rc=\frac{1}{2}0.85m=0.43m$

0.43m is equal to 43cm.

Compare your answer with the correct one above

Question

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Answer

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Compare your answer with the correct one above

Question

A lens has a focal length of . What is the strength and type of lens?

Answer

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Compare your answer with the correct one above

Question

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Answer

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature.

$f = \frac{1}{2}R_c$

Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length.

$f=\frac{1}{2}Rc=\frac{1}{2}0.85m=0.43m$

0.43m is equal to 43cm.

Compare your answer with the correct one above

Question

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Answer

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Compare your answer with the correct one above

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Focal Length - MCAT Physical

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature. Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length. 0.43m is equal to 43cm.

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

A lens has a focal length of . What is the strength and type of lens?

Since the focal length is negative, the lens is diverging. The diopter of a lens is found through the following formula: Since the focal length of the lens is :

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature. Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length. 0.43m is equal to 43cm.

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

A lens has a focal length of . What is the strength and type of lens?

Since the focal length is negative, the lens is diverging. The diopter of a lens is found through the following formula: Since the focal length of the lens is :

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature. Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length. 0.43m is equal to 43cm.

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

A lens has a focal length of . What is the strength and type of lens?

Since the focal length is negative, the lens is diverging. The diopter of a lens is found through the following formula: Since the focal length of the lens is :

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature. Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length. 0.43m is equal to 43cm.

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

A lens has a focal length of . What is the strength and type of lens?

Since the focal length is negative, the lens is diverging. The diopter of a lens is found through the following formula: Since the focal length of the lens is :

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature. Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length. 0.43m is equal to 43cm.

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

A lens has a focal length of . What is the strength and type of lens?

Since the focal length is negative, the lens is diverging. The diopter of a lens is found through the following formula: Since the focal length of the lens is :

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature. Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length. 0.43m is equal to 43cm.

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

A lens has a focal length of . What is the strength and type of lens?

Since the focal length is negative, the lens is diverging. The diopter of a lens is found through the following formula: Since the focal length of the lens is :

A concave mirror has a radius of curvature of 0.85m. Where is the mirror's focal point?

Since the mirror is concave, the focal point will be in front of the mirror. The focal length is equal to one half of the radius of curvature. Rc is the radius of curvature. Plugging in 0.85m for Rc allows us to solve for the focal length. 0.43m is equal to 43cm.

The focal point for a mirror is 56cm behind the mirror. Is the mirror concave or convex, and what is its radius of curvature?

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$

Since the focal length is negative, the lens is diverging.

The diopter of a lens is found through the following formula:

$diopter = \frac{1}{f}$

Since the focal length of the lens is :

$diopter = -\frac{1}{5}$

Since the focal point falls behind the mirror it must be convex. The radius of curvature can be found using the focal length equation.

$f = \frac{1}{2} Rc$