Light and Optics
GCE Physics

a) State the laws of refraction of light. (3 marks) b) A ray of light travels from air into a glass block of refractive index 1.52. If the angle of incidence is 40°, calculate: i) the angle of refr…

a) i) Define the term 'total internal reflection'. (2 marks) ii) State TWO conditions necessary for total internal reflection to occur. (2 marks) iii) Give TWO practical applications of total in…

An object is placed 30 cm in front of a concave mirror of focal length 10 cm. What is the image distance?

The phenomenon responsible for the formation of a rainbow is

A converging lens of focal length 20 cm is used as a magnifying glass. If the image is formed at the near point (25 cm) from the eye, what is the magnification produced?

Which of the following correctly describes the nature of the image formed by a plane mirror?

An object 4 cm tall is placed 15 cm from a diverging lens of focal length 30 cm. What is the height of the image formed?

A glass prism deviates a ray of red light less than a ray of violet light. This observation is best explained by the fact that

In a Young's double-slit experiment, the slit separation is 0.5 mm and the screen is placed 1.0 m away. If the wavelength of light used is 600 nm, what is the fringe width (separation between consecut…

Which of the following pairs of colours are the primary colours of light?

A ray of light travels from glass of refractive index 1.5 into air. What is the critical angle for the glass-air interface?