true or false. [1 M]

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11 questions · timed · auto-graded

Question 11 Mark

Sunlight is a mixture of eight different colours.

Answer

false

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Question 21 Mark

Periscope works on the multiple reflection by plane mirror.

Answer

true

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Question 31 Mark

The law of reflection is not valid for rough surfaces.

Answer

false

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Question 41 Mark

Visually challenged people can read and write with hearing aid.

Answer

false

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Question 51 Mark

Sunlight, called white light consists of seven colours.

Answer

true

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Question 61 Mark

Cones and rods are the light sensitive cells.

Answer

true

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Question 71 Mark

The part of the eye that renders colour to it is cornea.

Answer

false

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Question 81 Mark

An eye lens focuses light behind the eye at cornea.

Answer

false

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Question 91 Mark

Two mirrors inclined to each other give multiple images.

Answer

true

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Question 101 Mark

Diffused reflection gives a sharp image.

Answer

false

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Question 111 Mark

Diffused/Irregular reflection takes place from rough surfaces.

Answer

true

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true or false. [1 M] - Science STD 8 Questions - Vidyadip

Science true or false. [1 M]

true or false. [1 M]

Test yourself on this topic