19 solutions available
Question 7In the adjacent diagram, AO is a ray of light incident on a rectangular glass slab.(a) Complete the path of the ray until it emerges out of...
Question 8A ray of green light enters a liquid from air, as shown in the figure. The angle 1 is 45° and angle 2 is 30°.(a) Find the refractive index...
Question 13The refractive index of water is 4/3 and that of glass is 3/2. The refractive index of glass with respect to water is:9/828/91
Question 4A ray of light of wavelength 6600 Å suffers refraction from air to glass. Taking aμg = 3/2, find the wavelength of light in glass.
Question 5(a) Compare the speeds of light of wavelength 4000Å (i.e. violet light) and 8000Å (i.e. red light) in vacuum.(b) How is the refractive...
Question 9A boy uses blue colour of light to find the refractive index of glass. He then repeats the experiment using red colour of light. Will the...
Question 10Name two factors on which the refractive index of a medium depends? State how does it depends on the factors stated by you.
Question 12When an illuminated object is held in front of a thick plane glass mirror, several images are seen, out of which the second image is the...
Question 1Prove that,Refractive index=Real depthApparent depth\text {Refractive index} = \dfrac {\text {Real depth}}{\text {Apparent...
Question 3A postage stamp kept below a rectangular glass slab of refractive index 1.5 when viewed from vertically above it, appears to be raised by...
Question 6The refractive index of glass is 1.5. From a point P inside a glass slab, draw rays PA, PB and PC incident on the glass-air surface at an...
Question 11Draw a diagram of a right angled isosceles prism which is used to make an inverted image erect.
Question 14Draw a neat labelled ray diagram to show total internal reflection of a ray of light incident normally on one face of a 30°, 90°, 60°...
Question 15Copy the diagram given below and complete the path of the light ray till it emerges out of the prism. The critical angle of glass is 42°....
Question 16What device other than a plane mirror, can be used to turn a ray of light through 180°? Draw a diagram in support of your answer. Name an...
Question 17Two isosceles right-angled glass prisms P and Q are placed near each other as shown in figure. Complete the path of the light ray entering...
Question 18Complete the path of ray PQ through the glass prism ABC as shown in figure till it emerges out of the prism. Given the critical angle of...
Question 19The diagram below shows a light source P embedded in a rectangular glass block ABCD of critical angle 42°. Complete the path of ray PQ...
Question 2State the approximate value of the critical angle for(a) glass-air surface(b) water-air surface.