Light Energy

Light Energy

Assessment

Flashcard

Physics

8th Grade

Practice Problem

Hard

Created by

Wayground Content

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20 questions

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1.

FLASHCARD QUESTION

Front

A smooth shining surface, which rebounds the light in the same or in different directions, is called_____________.

Back

a mirror

2.

FLASHCARD QUESTION

Front

Beam of light striking a reflecting surface is called _____________.

Back

incident ray

3.

FLASHCARD QUESTION

Front

Band of seven colours is called _____________.

Back

spectrum

4.

FLASHCARD QUESTION

Front

In case of reflection of light, the relationship between angle of incidence (i) and the angle of reflection (r) may be expressed as: i = r, i < r, i > r, undetermined

Back

i = r

5.

FLASHCARD QUESTION

Front

What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?

Back

45°

6.

FLASHCARD QUESTION

Front

The splitting of white light into its seven constituent colours is called_____________.

Back

dispersion

7.

FLASHCARD QUESTION

Front

If the angle of incidence of light falling on a plane mirror is 30°, what will be the angle of reflection?

Back

30°

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