Explain the following terms: Incident ray, Reflected ray, Angle of incidence, Angle of reflection, Normal.

Important Questions on Light Energy

EASY

7th ICSE

IMPORTANT

Concise PHYSICS Middle School 7>Chapter 4 - Light Energy>TEST YOURSELF>Q 4

Draw a diagram showing the reflection of a light ray from a plane mirror. Label on it the incident ray, the reflected ray, the normal, the angle of incidence i and the angle of reflection r.

EASY

7th ICSE

IMPORTANT

Concise PHYSICS Middle School 7>Chapter 4 - Light Energy>TEST YOURSELF>Q 5

State the two laws of reflection of light.

HARD

7th ICSE

IMPORTANT

Concise PHYSICS Middle School 7>Chapter 4 - Light Energy>TEST YOURSELF>Q 6

Describe an experiment to verify the laws of reflection of light.

EASY

7th ICSE

IMPORTANT

Concise PHYSICS Middle School 7>Chapter 4 - Light Energy>TEST YOURSELF>Q 7

A ray of light falls normally on a plane mirror. What is the angle of incidence?

MEDIUM

7th ICSE

IMPORTANT

Concise PHYSICS Middle School 7>Chapter 4 - Light Energy>TEST YOURSELF>Q 8

Draw a diagram to show the reflection of a light ray incident normally on a plane mirror.

MEDIUM

7th ICSE

IMPORTANT

Concise PHYSICS Middle School 7>Chapter 4 - Light Energy>TEST YOURSELF>Q 9

The diagram in the figure shows an incident ray AO and the reflected ray OB from a plane mirror. The angle AOB is $30 °$ . Draw normal on the plane mirror at the point O and find the angle of incidence.

Question Image

MEDIUM

7th ICSE

IMPORTANT

Concise PHYSICS Middle School 7>Chapter 4 - Light Energy>TEST YOURSELF>Q 9

The diagram in figure shows an incident ray AO and the reflected ray OB from a plane mirror. The angle AOB is $30 °$ . Draw normal on the plane mirror at the point O and find the angle of reflection

Question Image