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MCQ Questions for Class 7 Science Chapter 15 Light with Answers

 

Light Class 7 MCQs Questions with Answers

I. Choose the correct option.

Question 1.
Which one of the following shows lateral inversion?
(a) Plane mirror
(b) Concave mirror
(c) Convex mirror
(d) Convex lens

Answer

Answer: (a) Plane mirror


Question 2.
Which of the following is used as a side view mirror?
(a) Plane mirror
(b) Concave mirror
(c) Convex mirror
(d) Convex lens

Answer

Answer: (c) Convex mirror


Question 3.
The path of the light is
(a) always a straight line
(b) a curved line
(c) a zig-zag line
(d) depends on the medium

Answer

Answer: (a) always a straight line


Question 4.
White light is composed of
(a) three colours
(b) seven colours
(c) five colours
(d) eight colours

Answer

Answer: (b) seven colours


Question 5.
A virtual image
(a) can be formed on the screen
(b) cannot be formed on the screen
(c) is formed only by the plane mirror
(d) is formed only by the convex mirror

Answer

Answer: (b) cannot be formed on the screen


Question 6.
The image formed by spherical mirror is virtual. The mirror will be
(a) concave
(b) convex
(c) either concave or convex
(d) none of these

Answer

Answer: (c) either concave or convex


Question 7.
The coloured band of light obtained by dispersion of light is called
(a) image
(b) spectrum
(c) convergence
(d) scattering

Answer

Answer: (b) spectrum


Question 8.
We can get an inverted image from
(a) both concave lens and convex lens.
(b) both concave mirror and convex mirror.
(c) both concave mirror and convex lens.
(d) both convex mirror and concave lens.

Answer

Answer: (c) both concave mirror and convex lens.


Question 9.
A convex lens is
(a) thick at centre
(b) thin at the centre
(c) thick at edges
(d) hollow at the centre

Answer

Answer: (a) thick at centre


Question 10.
The image that can not be obtained on a screen is called
(a) real image
(b) virtual image
(c) diminished image
(d) none of these

Answer

Answer: (b) virtual image


II. Fill in the Blanks

Question 1.
An image can be obtained on a screen is called a ………………. image

Answer

Answer: real


Question 2.
An image formed by ………………. lens cannot be obtained on a screen.

Answer

Answer: concave


Question 3.
………………. light deviates the least, while ………………. light deviates the more.

Answer

Answer: Red, violet


Question 4.
The outer surface of a flat steel plate acts as a ………………. mirror.

Answer

Answer: plane


Question 5.
The inner surface of the reflector of a torch acts as a ………………. mirror.

Answer

Answer: concave


Question 6.
A ………………. is a piece of any transparent material bound by two curved surfaces or by one curved and one plane surface.

Answer

Answer: lens


Question 7.
Convex mirrors are used as ………………. mirrors.

Answer

Answer: rear view


Question 8.
The image formed by a plane mirror is ……………….

Answer

Answer: virtual


Question 9.
The change of sides of an object and its mirror image is called ……………….

Answer

Answer: lateral inversion


Question 10.
The ray of light which falls on the smooth polished surface is called ………………. ray of light.

Answer

Answer: incident


III. True or False

Question 1.
The image formed by a convex mirror is erect.

Answer

Answer: False


Question 2.
The image formed by a concave mirror is formed on the screen.

Answer

Answer: True


Question 3.
The image formed by a plane mirror is real.

Answer

Answer: False


Question 4.
The change of sides of an object and its mirror image is called lateral inversion.

Answer

Answer: True


Question 5.
The image formed by plane mirror is erect.

Answer

Answer: True


Question 6.
When the reflecting surface of the spherical mirror is curved inwards, it is called concave mirror.

Answer

Answer: True


Question 7.
A concave mirror forms a virtual and erect image.

Answer

Answer: True


Question 8.
Any polished or shining surface acts as a mirror.

Answer

Answer: True


Question 9.
A convex mirror always forms a real image.

Answer

Answer: False


Question 10.
The concave mirror is converging.

Answer

Answer: True


IV. Match the Following

Column IColumn II
1. Real image(a) Upside down image
2. Virtual image(b) Upright image
3. Inverted image(c) Magnified image
4. Erect image(d) Deviates least
5. Rainbow(e) Deviates more
6. Concave mirror(f) Formed on the screen
7. Red light(g) Seven colours
8. Convex lens(h) Cannot be formed on the screen
9. Violet light(i) Virtual image
10. Plane mirror(j) Thinner at the edges
Answer

Answer:

Column IColumn II
1. Real image(f) Formed on the screen
2. Virtual image(h) Cannot be formed on the screen
3. Inverted image(a) Upside down image
4. Erect image(b) Upright image
5. Rainbow(g) Seven colours
6. Concave mirror(c) Magnified image
7. Red light(d) Deviates least
8. Convex lens(j) Thinner at the edges
9. Violet light(e) Deviates more
10. Plane mirror(i) Virtual image


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