Physics Crash Course NEET>Chapter 17 - Ray Optics>Level 1>Q 16

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In the figure shown, find the total magnification after two successive reflections first on $M_{1}$ and then on $M_{2}$ .

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Important Questions on Ray Optics

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Physics Crash Course NEET>Chapter 17 - Ray Optics>Level 1>Q 17

The image formed by a concave mirror

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Physics Crash Course NEET>Chapter 17 - Ray Optics>Level 1>Q 18

A concave mirror is placed on a horizontal table with its axis vertically upwards. Let

O

be the pole of the mirror and

C

be the centre of curvature. A point object placed at

C

, forms a real image at

C

. If the mirror is now filled with water, the image will be

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Physics Crash Course NEET>Chapter 17 - Ray Optics>Level 1>Q 19

A boy and a lamp post are

80 m

away from a concave mirror of focal length

20 m

. The boy walks

40 m

towards the mirror. The boy will see

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Physics Crash Course NEET>Chapter 17 - Ray Optics>Level 1>Q 20

A person standing

12 cm

away from mirror

A

of focal length

10 cm

sees his image inverted and enlarged. When the mirror

A

is replaced by mirror

B

of the same focal length, the person observes diminished and erect image. Mirrors

A and B

are respectively

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Physics Crash Course NEET>Chapter 17 - Ray Optics>Level 1>Q 21

A square $A B C D$ of side $1 mm$ is kept at distance $15 cm$ in front of the concave mirror as shown in the figure. The focal length of the mirror is $10 cm$ . The length of the perimeter of its image will be:
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Physics Crash Course NEET>Chapter 17 - Ray Optics>Level 1>Q 22

If a concave mirror of focal length

10 cm

is immersed in water, its focal length will

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Physics Crash Course NEET>Chapter 17 - Ray Optics>Level 1>Q 23

In a motor car, spherical mirrors are utilised at two different places,
(i) the head light and
(ii) rear view mirror. What type of mirrors are used?

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Physics Crash Course NEET>Chapter 17 - Ray Optics>Level 1>Q 24

A short linear object $O$ is placed on the principal axis of convex mirror of focal length $f$ as shown in the figure. The ratio of transverse magnification to longitudinal magnification is :

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