1. What is the unit for measuring the amplitude of a sound?
- (A) Decibel
- (B) Coulomb
- (C) Hum
- (D) Cycles
2. One nanometer is equal to
- (A) 10-6 m
- (B) 10-8 m
- (C) 10-9 m
- (D) 10-5 m
3. One fathom is equal to
- (A) 6 feet
- (B) 6 meters
- (C) 60 feet
- (D) 100 cm
4. Light year is a measurement of
- (A) Speed of aeroplanes
- (B) Speed of light
- (C) Stellar distances
- (D) Speed of rockets
5. One kilometer is equal to how many miles?
- (A) 0.84
- (B) 0.5
- (C) 1.6
- (D) 0.62
6. ‘Bar’ is the unit of
- (A) Temperature
- (B) Heat
- (C) Atmospheric pressure
- (D) Current
7. Nautical mile is a unit of distance used in
- (A) Navigation
- (B) Road mile
- (C) Astronomy
- (D) Measuring the boundaries of a nation
8. How many Dynes are there in 1 gram weight?
- (A) 900
- (B) 375
- (C) 981
- (D) 250
9. Joule is the unit of
- (A) Temperature
- (B) Pressure
- (C) Energy
- (D) Heat
10. How many Ergs are there in 1 joule?
- (A) 102
- (B) 104
- (C) 106
- (D) 107