Test: Light - 4


20 Questions MCQ Test General Science for UPSC (Civil Services) Prelims | Test: Light - 4


Description
This mock test of Test: Light - 4 for Class 8 helps you for every Class 8 entrance exam. This contains 20 Multiple Choice Questions for Class 8 Test: Light - 4 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Light - 4 quiz give you a good mix of easy questions and tough questions. Class 8 students definitely take this Test: Light - 4 exercise for a better result in the exam. You can find other Test: Light - 4 extra questions, long questions & short questions for Class 8 on EduRev as well by searching above.
QUESTION: 1

The ray of light striking at the reflecting surface is called

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QUESTION: 2

The angle of incidence is always ______ to the angle of reflection.

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QUESTION: 3

There are ______ laws of reflection.

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QUESTION: 4

The process of banding of seven colours is called

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QUESTION: 5

The image formed by plane mirror is

Solution:

Plane mirror form virtual and erect image.

QUESTION: 6

The image that can be obtained on the screen is called

Solution:

An image which can be obtained on a screen is called a real image.

Images are of two types: real images and virtual images. Real images are formed on a screen, whereas virtual images cannot be formed on the screen.

QUESTION: 7

Reflection from a smooth surface is

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QUESTION: 8

 Angle between normal and incident ray is called

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QUESTION: 9

An example of luminous object is

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QUESTION: 10

An example of night bird is

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QUESTION: 11

Cones and rods are the light sensitive cells.

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QUESTION: 12

Kaleidoscope is based on the principle of spectrum.

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QUESTION: 13

Rods are sensitive to bright light.

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QUESTION: 14

The image formed by plane mirror is laterally inverted.

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QUESTION: 15

Angle of incidence is greater than angle of reflection.

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QUESTION: 16

Cones of our eye are responsible for colour vision.

Solution:

Cones of our eyes are responsible for colour vision.

QUESTION: 17

On blind spot there are no sensory cells.

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QUESTION: 18

 If particles of dust enter our eyes then we should rub eye properly.

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QUESTION: 19

 Two mirrors inclined to each other give multiple images.

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QUESTION: 20

Visually challenged persons can read and write using the Braille system.

Solution:

Braille is the language in which holes are done in page and in special language which is taught to blind people which is sensible by touching by fingers. 
Thus the given statement is true.

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