Ch-16 light (Science) class 8

A smooth shining surface, which rebounds the light back in same or in different direction, is called

• Mirror

• Incident ray

• Lens

• Idealisation

Tags

NGSS.MS-PS4-2

Band of seven colours is called

• dispersion

• Normal

• spectrum

• VIBGYOR

Name the type of mirror used as a backview mirror.

• Convex mirror

• Plane mirror

• Concave mirror

• Any of these

The image formed by a camera and a simple microscope are respectively

• real and real

• real and virtual

• virtual and real

• virtual and virtual

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

• 60°

• 45°

• 180°

• 90°

• 160°

Tags

NGSS.MS-PS4-2

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

• 60°

• 30°

• 55°

• 40°

Tags

NGSS.MS-PS4-2

When we stand in front of our dressing table, our left hand seems to be right and right seems to be left. This is called

• mirage

• Up -side down phenomenon

• Left-right confusion

• Lateral inversion

Tags

NGSS.MS-PS4-2