IIT JEE Questions And Answers :: Ray Optics And Optical Instruments: part1



IIT JEE : Ray Optics And Optical Instruments QUESTIONS AND ANSWERS :: part1 : 11 to 15

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

11.If two mirrors are kept at 600 to each other, then the number of images formed by them is:

5
6
7
8

12.Select the correct alternative, in case of dispersion without deviation.

The emergent rays of all the colours are parallel to the incident ray
Only yellow coloured ray is parallel to the incident ray
Only red coloured ray is parallel to the incident ray
All the rays are parallel, but not parallel to the incident ray

13.Image formed by convex mirror is:

virtual
real
enlarged
inverted

14.The mirage in desert is caused because:

the refractive index of atmosphere does not change with height
there is effect of height on refractive index
light is reflected by the particles
none of the above

15.Which of the following is used in optical fibres?

Total internal reflection
Scattering
Diffraction
Refraction

More Ray Optics And Optical Instruments QUESTIONS AND ANSWERS available in next pages

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