Physics MCQ Quiz Hub

1. In the case of a concave mirror, the image of an object is
 Real, erect and diminished when the object lies beyond the centre of curvature.
 Real, inverted and of the same size as the object when it lies between the centre of curvature and focus.
Real, inverted and diminished when the object lies beyond the centre of curvature.
Not real, large and unproportional.

2. To increase the magnifying power of a telescope, the focal length of
Objective lens should be increased.
Objective lens should be decreased.
Eye-piece lens should be increased.
Eye-piece lens should be decreased.

3.  Because the sunlight falling on it is reflected.
Because the sunlight falling on it is reflected.
Because the sunlight falling on it is refracted.
 Because the sunlight falling on it is absorbed.
Because the sunlight falling on it is scattered.

4. What is the power of concave lens?
 Positive
Negative
Both
 None of the above

5. Which glasses or lens are used to correct the short sighted eye defect?
Concave Lens
Convex Lens
 Bipolar Lens
None of the above

6.  In projectors which lenses are used?
 Convex lens
Concave lens
Bipolar lens
Both (a) and (b)

7.  Due to which phenomena the stick if immersed in water appears to be bent?
Reflection
 Dispersion
Refraction
Scattering

8. Due to which phenomena light rays emerging from a cinema machine spread wide on the screen?
 Dispersion
Diffraction
Scattering
Refraction

9. Dental mirror is what type of a mirror?
Convex mirror
Concave mirror
Plane mirror
Both (b) and (c)

10. What type of a mirror is used in anti-shop-lifting-devices?
Concave mirror
Convex mirror
Plane mirror
None of the above