Class 10 Science MCQ Questions of Light Reflection and Refraction with Answer

Free CBSE Class 10 Science MCQ Questions Light Reflection and Refraction with Answers. MCQ Questions for Class 10 Science with Answers was Prepared Based on Latest Exam Pattern. students can be solving MCQ Questions for Class 10 Science Light Reflection and Refraction with Answers to realize their preparation level.

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1. Image formed by plane mirror is

(a) Real and erect
(b) Real and inverted
(c) Virtual and erect
(d) Virtual and inverted

Answer:

(c) Virtual and erect

2. The unit of power of lens is

(a) Metre
(b) Centimeter
(c) Diopter
(d) \(M^{-1}\)

Answer:

(c) Diopter

3. In optics an object which has higher refractive index is called

(a) Optically rarer
(b) Optically denser
(c) Optical density
(d) Refractive index

Answer:

(b) Optically denser

4. If an incident ray passes through the focus, the reflected ray will

(a) pass through the pole
(b) be parallel to the principal axis
(c) retrace its path
(d) pass through the centre of curvature

Answer:

(b) be parallel to the principal axis

5. As light travels from a rarer to a denser medium it will have

(a) increased velocity
(b) decreased velocity
(c) decreased wavelength
(d) both (b) and (c)

Answer:

(d) both (b) and (c)

6. A divergent lens will produce

(a) always real image
(b) always virtual image
(c) both real and virtual image
(d) none of these

Answer:

(b) always virtual image

7. For a real object, which of the following can produce a real image?

(a) Plane mirror
(b) Concave mirror
(c) Concave lens
(d) Convex mirror

Answer:

(b) Concave mirror

8. Total internal reflection of light is possible when light enters from :
(a) Water to air
(b) Air to water
(c) Vacuum to air
(d) Air to glass

Answer:

(a) Water to air

9. Which of the given is NOT paired correctly?

(a) Solar furnace-concave mirror
(b) Rear -view mirror-convex mirror
(c) Magnifying glass -convex lens
(d) None of these

Answer:

(d) None of these

10. Refractive index:

(a) Depends on the wavelength of light used to measure
(b) Is actual property of the substance
(c) Depends on the angle of incidence
(d) None of these

Answer:

(a) Depends on the wavelength of light used to measure

11. Conjugate focus is possible only in:

(a) Convex mirror
(b) Concave mirror
(c) Plane mirror
(d) Simple glass

Answer:

(b) Concave mirror

12. The focal length of plane mirror is:

(a) Zero
(b) Infinite
(c) 25 cm
(d) 25 cm

Answer:

(b) Infinite

13. When white light passes through a prism, maximum deviation be of:

(a) Red colour
(b) Yellow colour
(c) Violet colour
(d) Green colour

Answer:

(c) Violet colour

14. The order of colours arranged in spectrum of white light is expressed as:

(a) VIBGYOR
(b) VIBYGOR
(c) VIBGOYR
(d) VIGBYOR

Answer:

(a) VIBGYOR

15. A concave mirror produces a magnification of +4. The object is placed:

(a) At the focus
(b) Between focus and centre of curvature
(c) Between focus and pole
(d) Beyond the centre of curvature

Answer:

(c) Between focus and pole

16. The laws of reflection hold good for

(a) plane mirror only
(b) concave mirror only
(c) convex mirror only
(d) all mirrors irrespective of their shape

Answer:

(d) all mirrors irrespective of their shape

17. You are given water, mustard oil, glycerine and kerosene. In which of these media a ray of light incident obliquely at same angle would bend the most?

(a) Kerosene
(b) Water
(c) Mustard oil
(d) Glycerine

Answer:

(d) Glycerine

18. Light travel fastest in

(a) Water
(b) Air
(c) Glass
(d) Diamond

Answer:

(b) Air

19. Transparent medium is one :

(a) Which partially allows light to pass through
(b) Which absorbs most of the light
(c) Which allows most of the light to pass through
(d) None of these

Answer:

(c) Which allows most of the light to pass through

20. Out of seven colours of white light, which colour has maximum wavelength?

(a) Red
(d) Green
(c) violet
(d) Green

Answer:

(a) Red