Home
Class 12
PHYSICS
Which mirror is to be used to obtain a ...

Which mirror is to be used to obtain a paralle beam of light from a small lamp?

A

Plane mirror

B

Convex mirror

C

Concave mirror

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
C
Concave mirror : When the small lamp is placed at the focus of the concave mirror , the reflected light is a parallel beam .
Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER - 17 (UNSOLVED)

    FULL MARKS|Exercise PART-II|9 Videos

  • SAMPLE PAPER - 17 (UNSOLVED)

    FULL MARKS|Exercise PART-III|9 Videos

  • SAMPLE PAPER - 15 (UNSOLVED)

    FULL MARKS|Exercise PART-IV|10 Videos

  • SAMPLE PAPER - 18 (UNSOLVED)

    FULL MARKS|Exercise PART - IV|10 Videos

Similar Questions

Explore conceptually related problems

A convex lens of diameter 8.0 cm is used to focus a parallel beam of light of wavelength 620 nm. If the light be focused at a distance of 20 cm from the lens, what would be the radius of the central bright spot formed ?

An aperture of size a is illuninated by a parallel beam of light of wavelength gamma . The distance at which ray optics has a good approximation is

Two converging lenses of unequal focal lengths can be used to reduce the aperture of a parallel beam of light without loosing the energy of the light. This increases the intensity. Describe how the converging lenses should be placed to do this.

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

Which of the following mirror is used by a dentist to examine a small cavity?

a. Which mirror is used as driver's mirror ? b. Why ?

Cross word puzzle : Across ,Mirror which converges a parallel beam of light passing through it.