3.2 LIGHT IGCSE PHYSICS 0625 (PART 1)

State the characteristics of image of plane mirror

• same size

• virtual

• real

• upright

The diagram shows a man stand in front of a lane mirror. State the distance between the pot and the image of the man.

• 5 m

• 8 m

• 9 m

• 10 m

The Diagram shows image of wall clock in a plane mirror. What is the actual time on the clock?

• 5.15

• 7.15

• 7.45

• 8.45

Tags

CCSS.4.G.A.3

The diagram shows a reflection of light. Which statement is correct?

• incident angle= a

  reflected angle= d

• incident angle= b

  reflected angle= c

• incident angle= c

  reflected angle= b

• incident angle= d

  reflected angle= a

The diagram shows a refraction of light. Which statement is correct?

• incident angle= a

  refracted angle= c

• incident angle= b

  refracted angle= d

• incident angle= d

  refracted angle= b

• incident angle= c

  refracted angle= a

The diagram shows a refraction of light. Which statement is correct?

• the light bends away from normal line

• the light bends towards normal line

• velocity of the light decrease

• velocity of the light increase

The diagram shows a refraction of light when enter a block. Given refractive index of the block is 1.6. Determine the speed of the light in the block.

• 3 x 10⁸ m s^-1

• 1.6 x 10⁸ m s^-1

• 1.9 x 10⁸ m s^-1

• 2 x 10⁸ m s^-1

If speed of light in a glass is 2.1 x 10⁸ m s^-1, find the refractive index of the glass.

• 1.43

• 0.70

• 0.67

• 1.55

Tags

CCSS.8.EE.A.4

"the ratio of speed of light in vacuum to the speed of light in medium." This is definition for

• refraction of light

• reflection of light

• total internal reflection

• refractive index

a material with higher refractive index indicates _____ optical density.

• higher

• lower

• similar