Questions (125)
Q1CAPF2018
The optical phenomenon that is responsible for the propagation of light signal through an optical fibre is
- A interference
- B scattering
- C total internal reflection ✓
- D refraction
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
Q2CAPF2018
Which of the following statements about optical microscope is/are correct?
- Both the eyepiece and objective of a microscope are convex lenses
- The magnification of a microscope increases with increase in focal length of the objective
- The magnification of a microscope depends upon the length of the microscope tube
- The eyepiece of a microscope is a concave lens
Select the correct answer using the code given below.
- A 1 and 3 ✓
- B 3 only
- C 3 and 4
- D 1, 2 and 4
✓ Correct answer: (A)
Science & Technology › Physics & Chemistry
Q3CAPF2018
Which one of the following gemstones contains beryllium metal?
- A Topaz
- B Emerald ✓
- C Ruby
- D Blue sapphire
✓ Correct answer: (B)
Science & Technology › Physics & Chemistry
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