Ray Optics and Optical Instruments

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Question

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Question 1 : Which of-the following is not a property of light?
1. It has a finite speed
2. It can travel through vacuum
3. It involve transportation energy
4. It requires a material medium for its propagation
Answer
8847

Question 2 : Two points P and q are situated at the same distance from a source of light but on opposite sides. The plane difference between the light waves passing through P and q will be ______________
1. zero
2. π/2
3. 2n
4. n
Answer
8848

Question 3 : The phase difference between the electric and the magnetic field vectors in electromagnetic waves is
1. zero
2. π
3. π/2
4. π/4
Answer
8849

Question 4 : A ray of light traveling in air is incident of a glass slab. The ray gets partly reflected and partly refracted. The phase difference between the reflected and the refracted waves is ____________
1. zero
2. π
3. π/2
4. π/4
Answer
8850

Question 5 : Which of the following cannot be polarized?
1. sound waves
2. X-rays
3. radiowaves
4. transverse waves
Answer
8851