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A small square object is placed between the centre of curvature and focus of a concave mirror, as shown in the figure. What will be the correct shape of image?

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Important Questions on Ray Optics and Optical Instruments

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Chapterwise/Topicwise Daily Practice Problems (DPP) Optics and Modern Physics NEET>Chapter 1 - Ray Optics and Optical Instruments>TOPICWISE QUESTIONS>Q 20

A luminous point object is moving towards and along the principal axis of a concave mirror of focal length

12 cm

. When its distance from the mirror is

20 cm

, its velocity is

4 cm s^{- 1}

. The velocity of the image at that instant is

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Chapterwise/Topicwise Daily Practice Problems (DPP) Optics and Modern Physics NEET>Chapter 1 - Ray Optics and Optical Instruments>TOPICWISE QUESTIONS>Q 21

A linear object $A B$ is placed along the axis of a concave mirror. The object is moving towards the mirror with speed $V$ . The speed of the image of the point $A$ is $4 V$ and the speed of the image of point $B$ is also $4 V$ . If the centre of the line $A B$ is at a distance $L$ from the mirror, then the length of the object $A B$ will be

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Chapterwise/Topicwise Daily Practice Problems (DPP) Optics and Modern Physics NEET>Chapter 1 - Ray Optics and Optical Instruments>TOPICWISE QUESTIONS>Q 22

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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Chapterwise/Topicwise Daily Practice Problems (DPP) Optics and Modern Physics NEET>Chapter 1 - Ray Optics and Optical Instruments>TOPICWISE QUESTIONS>Q 23

If a bubble in glass slab

(μ = 1.5)

when viewed, appears at

5 cm

from one side and

2 cm

from other side. The thickness of the slab is :

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Chapterwise/Topicwise Daily Practice Problems (DPP) Optics and Modern Physics NEET>Chapter 1 - Ray Optics and Optical Instruments>TOPICWISE QUESTIONS>Q 24

A light wave travels from glass to water. The refractive index for glass and water are

\frac{3}{2}

and

\frac{4}{3}

, respectively. The value of the critical angle will be

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Chapterwise/Topicwise Daily Practice Problems (DPP) Optics and Modern Physics NEET>Chapter 1 - Ray Optics and Optical Instruments>TOPICWISE QUESTIONS>Q 25

When a beam of light goes from denser medium

(μ_{d})

to the rarer medium

(μ_{r})

, then it is generally observed that the magnitude of angle of incidence is half to that of angle of refraction. Then the magnitude of incident angle will be( here,

μ = \frac{μ_{d}}{μ_{r}}

)

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Chapterwise/Topicwise Daily Practice Problems (DPP) Optics and Modern Physics NEET>Chapter 1 - Ray Optics and Optical Instruments>TOPICWISE QUESTIONS>Q 26

{}_{i}μ_{j}

represents refractive index when a light ray goes from medium

i

to medium

j

, then the product

{}_{2}μ_{1}

\times

{}_{3}μ_{2}

\times

{}_{4}μ_{3}

is equal to

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Chapterwise/Topicwise Daily Practice Problems (DPP) Optics and Modern Physics NEET>Chapter 1 - Ray Optics and Optical Instruments>TOPICWISE QUESTIONS>Q 27

The wave length of light diminishes

μ

times (

μ = 1.33

for water) in a medium. A diver inside the water looks at an object whose natural colour is green. He sees the object as

A small square object is placed between the centre of curvature and focus of a concave mirror, as shown in the figure. What will be the correct shape of image?

Important Questions on Ray Optics and Optical Instruments

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