Light

Question 1

Laws of reflection

Answer 1

Angle of incidence= Angle of Reflection
The incident Ray, The reflected Ray, The point of incidence lie on the same plane.
<i=<r

Question 2

What are the image characteristics of Plane mirror

Answer 2

The image formed is virtual, Erect and of the same size as the object.

Question 3

The distance between the mirror and the object is same

Answer 3

In plane mirror. Shows lateral inversion

Question 4

What is real image

Answer 4

The image which can be obtained on the screen

Question 5

The image formed in the concave mirror is

Answer 5

Virtual , erect and magnified

Question 6

Concave mirror can form

Answer 6

Real and inverted image

Question 7

Which mirror is called converging mirror

Answer 7

Concave mirror

Question 8

Concave mirrors are used in

Answer 8

Shaving mirrors, by Dentists and ENT doctors, headlights of vehicles, Torches and solar cookers.

Question 9

Image formed in convex mirror is

Answer 9

Virtual, erect and diminished

Question 10

The use of convex mirror

Answer 10

Wide field of view

Question 11

Uses of Convex mirror

Answer 11

1. Rear view mirror in vehicles.
2. Street light reflections as it is able to spread light over a bigger area

Question 12

Concave lens form

Answer 12

Erect , Virtual and diminished

Question 13

Concave lens is called

Answer 13

Diverging lens

Question 14

Concave lens is used in

Answer 14

Myopia
Spy holes in doors

Question 15

Convex lens can form

Answer 15

Real and inverted image. When the object is placed very close to the lens , the image formed is virtual, erect and magnified

Question 16

Uses of convex lens

Answer 16

Camera
Microscope
Simple telescope
Hypermétropia(short sightedness)

Question 17

Speed of light changes in

Answer 17

Different medium