optics Archives - MCQ and Quiz for Exams

1. Endoscope used by Doctors for examining the inside of the patient’s stomach, works on the principle of

reflection of light

dispersion of light

total internal reflection of light

refraction of light Ans. c

Detailed SolutionEndoscope used by Doctors for examining the inside of the patient’s stomach, works on the principle of

2. The mirror used by the dentists to see the teeth of the patients is

convex

concave

plane

none of the above

Detailed SolutionThe mirror used by the dentists to see the teeth of the patients is

3. The image formed by an astronomical telescope is

virtual and diminished

virtual and magnified

real and diminished

real and magnified

Detailed SolutionThe image formed by an astronomical telescope is

4. Which of the following is used for correcting myopic eyes ?

Concave Lens

Convex Lens

Cylindrical Lens

None of the above

Detailed SolutionWhich of the following is used for correcting myopic eyes ?

5. Which of the following colours of light travels slowest in glass?

Red

Green

Violet

All travel with the same speed.

Detailed SolutionWhich of the following colours of light travels slowest in glass?

6. Brilliance of diamond is due to

interference of light

diffraction of light

polarization of light

total intemal reflection of light

Detailed SolutionBrilliance of diamond is due to

7. The mirror used in search lights is

concave

convex

plane

none

Detailed SolutionThe mirror used in search lights is

8. For the myopic eye, the defect is cured by

Convex lens

Concave lens

Cylindrical lens

None of the above

Detailed SolutionFor the myopic eye, the defect is cured by

9. An object is placed between two parallel plane mirrors. The number of images formed is

four

one

two

infinite

Detailed SolutionAn object is placed between two parallel plane mirrors. The number of images formed is

10. Which one of the following types of mirror is used to see the traffic behind the car?

Convex mirror

Concave mirror

Plane mirror

Spherical mirror

Detailed SolutionWhich one of the following types of mirror is used to see the traffic behind the car?

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