Physics Crash Course MHT-CET>Chapter 19 - Ray Optics>Exercise 1>Q 146

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An object and a plane mirror are shown in figure. Mirror is moved with velocity $V$ as shown. The velocity of image is:

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Important Questions on Ray Optics

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Physics Crash Course MHT-CET>Chapter 19 - Ray Optics>Exercise 1>Q 147

Two plane mirrors are joined together as shown in the figure. Two point objects $O_{1}$ and $O_{2}$ are placed symmetrically such that $A O_{1} = A O_{2}$ . The image of the two objects is common if:

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Physics Crash Course MHT-CET>Chapter 19 - Ray Optics>Exercise 1>Q 148

A point object is kept in front of a plane mirror. The plane mirror is doing

SHM

of amplitude

2 cm

. The plane mirror moves along the

x

-axis and

x

-axis is normal to the mirror. The amplitude of the mirror is such that the object is always in front of the mirror. The amplitude of

SHM

of the image is

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Physics Crash Course MHT-CET>Chapter 19 - Ray Optics>Exercise 1>Q 149

A plane mirror is moving with velocity

4 \hat{i} + 5 \hat{j} + 8 \hat{k}

. A point object in front of the mirror moves with a velocity

3 \hat{i} + 4 \hat{j} + 5 \hat{k}

. Here

\hat{k}

is along the normal to the plane mirror and facing towards the object. The velocity of the image is:

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Physics Crash Course MHT-CET>Chapter 19 - Ray Optics>Exercise 1>Q 150

If a man approaches a plane mirror at a rate of

2 km h^{- 1}

, then his image would approach him at a rate of,

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Physics Crash Course MHT-CET>Chapter 19 - Ray Optics>Exercise 1>Q 151

A lady is standing in front of a plane mirror at a distance of

1 m

from it. She walks

60 cm

towards the mirror. The distance of her image now from herself (ignoring the thickness of the mirror) is:

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Physics Crash Course MHT-CET>Chapter 19 - Ray Optics>Exercise 1>Q 152

Statement I- Due to diffused or irregular reflection of light, a closed room gets light even, if no direct sunlight falls inside the room.
Statement II- Irregular reflection, where the reflected rays are not parallel, does not follow the laws of reflection.

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Physics Crash Course MHT-CET>Chapter 19 - Ray Optics>Exercise 1>Q 153

Which one of the following statements is correct for a plane mirror?

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Physics Crash Course MHT-CET>Chapter 19 - Ray Optics>Exercise 1>Q 156

A point object is placed at a distance of