W2 Sep S4 Pure Phy Exam Preparations 2: Light

The diagram shows a periscope Bob uses to observe a ball from point X.

Where is the image of the ball formed?

• A

• B

• C

• D

The diagram shows a light ray being partially refracted and reflected when directed towards a glass prism.

What is the refractive index of the glass prism?

• 1.33

• 1.48

• 1.76

• 1.96

Bob places an object 15 cm away from the converging lens.

He realised that the image formed by the converging lens is the same size as the object.

What are the possible other properties the image formed have?

• real, upright

• real, inverted

• virtual, inverted

• virtual, upright

Which of the following are the EM waves ordered in decreasing wavelength?

• radio waves, visible light, gamma rays

• ultra-violet, infrared rays, microwaves

• visible light, ultra-violet, microwaves

• X-rays, microwaves, infrared rays

Which statement about ultra-violet radiation and microwaves are true?

• They are longitudinal waves.

• They have the same frequency in air.

• They require a medium to propagate in.

• They travel at the same speed in air.