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Given a point source of light, which of the following can produce a parallel beam of light?

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Important Questions on Ray Optics

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Physics Crash Course JEE Advanced>Chapter 17 - Ray Optics>Exercise 1>Q 3
When image is formed by reflection, the field of view is maximum for
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Physics Crash Course JEE Advanced>Chapter 17 - Ray Optics>Exercise 1>Q 4
An object, is placed 60 cm in front of a convex mirror of focal length 30 cm. A plane mirror is now placed facing the object in between the object and the convex mirror such that it covers lower half of the convex mirror. What should be the distance of the plane mirror from the object, so that there will be no parallax between the images formed by the two mirrors?
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Physics Crash Course JEE Advanced>Chapter 17 - Ray Optics>Exercise 1>Q 5

A mirror is inclined at an angle of θ with the horizontal. If a ray of light is incident at an angle θ as shown, then the angle made by the reflected ray with the horizontal is 

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Physics Crash Course JEE Advanced>Chapter 17 - Ray Optics>Exercise 1>Q 6
How will you arrange the two plane mirrors so that whatever may be the angle of incidence, the incident ray and the reflected ray from the two mirrors will be parallel to each other?
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Physics Crash Course JEE Advanced>Chapter 17 - Ray Optics>Exercise 1>Q 7
An object and a concave mirror are approaching each other with velocities 10 m/s and 5 m/s as shown in figure. The velocity of image of object at the instant shown in figure is

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Physics Crash Course JEE Advanced>Chapter 17 - Ray Optics>Exercise 1>Q 8

In the figure shown, find the total magnification after two successive reflections first on M1 and then on M2.

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Physics Crash Course JEE Advanced>Chapter 17 - Ray Optics>Exercise 1>Q 9
A beaker containing liquid is placed on a table, underneath a microscope which can be moved along a vertical scale. The microscope is focused, through the liquid onto a mark on the table when the reading on the scale is a.
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It is next focused on the upper surface of the liquid and the reading is b. More liquid is added and the observations are repeated, the corresponding readings are c and d. The refractive index of the liquid is -
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Physics Crash Course JEE Advanced>Chapter 17 - Ray Optics>Exercise 1>Q 10

A monochromatic beam of width t is incident at 45° on an air-water surface. The refractive index of water is μ . The width of the beam in water is,