Periscopes and Light

What is the angle of mirror in periscope

• 35

• 45

• 55

• 65

How many mirrors there are in the periscope?

• 5

• 4

• 3

• 2

Tags

NGSS.MS-PS4-2

How does periscope works?

• A periscope works by using two mirrors to reflect light from one mirror to another for the person to see the things that is behind a high obstacle.

• It works by using one mirror to reflect for us to see things behind a high obstacle.

• It works by using one glass to reflect for us to see things behind a high obstacle.

What is the working principle of a periscope?

• A periscope works on the Refraction of Light.

• A periscope works on the Law of Reflection.

• A periscope works on the Dispersion of Light.

What is the type of mirror use in periscope?

• Convex mirror

• Concave mirror

• Plane mirror

Tags

NGSS.MS-PS4-2

Diagram shows a phenomenon occurs when the spotlight is directed onto a mirror surface. What is the principle of light shown in the situation?

• Light travels in a straight line

• Refraction of light

• Reflection of light

• Light travels in parallel

Tags

NGSS.MS-PS4-2

The following diagram shows the ray diagram when a torch light is torched towards a mirror. Which of the following is the correct reflected ray?

• 
• 
• 
• 

Tags

NGSS.MS-PS4-2

The following diagram shows a driver who could see the image of a vehicle behind him without turning his back.

Why?

• Light travels in a straight line

• Light is refracted

• Light is reflected

• Light travels in two different mediums

Tags

NGSS.MS-PS4-2

Tick the correct of TWO devices which use the principle of light reflection in our daily lives.

• 
• 
• 
• 

Tags

NGSS.MS-PS4-2

Ariff is watching a cat on a wall using a periscope. Which of the following is the correct reflected ray diagram in the periscope? Tick the correct answer.

• 
• 
• None

• None

Tags

NGSS.MS-PS4-2