LIGHT - isaac newton

Question 1

Isaac newton believed that light is consistent and composed of particles which he named as —-.

Answer 1

corpuscles

Question 1

Newton proposed that light consists of tiny, massless particles called corpuscles. These corpuscles travel in straight lines and can bounce off surfaces like billiard balls.

Answer 1

Light behaves like particles:

Question 1

Newton also observed that light can be diffracted and dispersed, which are typical characteristics of waves.

Answer 1

Light exhibits wave-like properties:

Question 1

Corpuscles are perfectly elastic.

T OR F

Answer 1

TRUE

Question 1

The —- are emitted from luminous sources such as Sun, candle, electric lamp etc

Answer 1

corpuscles

Question 2

The tiny particles (corpuscles) always travel in a —– in all directions.

Answer 2

straight line

Question 3

Each particle (corpuscle) carries —- with it while moving.

Answer 3

kinetic energy

Question 4

The corpuscles travel at — velocity.

Answer 4

high

Question 5

The corpuscles are all the same sizes

T OR F

Answer 5

FALSE

The corpuscles can be of different sizes.

Question 6

Light bounces off surfaces at equal angles of incidence and reflection due to repulsion between light corpuscles and the reflecting surface.

Answer 6

REFLECTION

Question 7

occurs due to the attraction between corpuscles of light and the molecules of a new medium.

Answer 7

REFRACTION

Question 8

When light enters a denser medium, it bends and its speed increases compared to before entering. This bending effect is caused by the change in the optical density of the medium.

Answer 8

REFRACTION