Question No.1
- Cohesive force
- Adhesive force
- Surface tension
- None of these
Select Answer
Correct Answer: ( B )
Question No.2
Which of the following does not belongs to mechanical waves.
- Longitudinal waves
- Transverse waves
- Surface waves
- Electromagnetic waves
Select Answer
Correct Answer: ( D )
Question No.3
Light is a ___________wave.
- Transverse
- Longitudinal
- Both of these
- None of these
Select Answer
Correct Answer: ( A )
Question No.4
The SI unit of mechanical power is______
- Joule
- Watt
- Newton-second
- Joule-second
Select Answer
Correct Answer: ( B )
Question No.5
What is the SI unit of entropy?
- Joule/sec
- Joule/kelvin
- J-kelvin
- Joule-sec
Select Answer
Correct Answer: ( B )
Question No.6
The unit of magnetic flux is_______
- weber/meter
- weber-ampere
- weber-sec
- weber
Select Answer
Correct Answer: ( D )
Question No.7
Which of the following is a vector quantity?
- Speed
- Momentum
- Momen of Inertia
- Electric current
Select Answer
Correct Answer: ( B )
Question No.8
Parsec is the unit of_______
- Distance
- Magnetic force
- Time
- Energy
Select Answer
Correct Answer: ( A )
Question No.9
An artificial satellite orbiting around the earth does not fall down. This is because the attraction of the earth :
- Does not exist at such distance
- Is neutralized by the attraction of the moon
- Provides the necessary acceleration for its motion
- Provides the necessary speed for its steady motion
Select Answer
Correct Answer: ( C )
Question No.10
The surface of a lake is frozen in severe winter, but the wate at its bottom is still liquid because____
- ice is a bad conductor of heat
- the density of water is maximum at 4°C
- since the surface of the lake is at the same temperature as the air, no heat is lost
- None of these
Select Answer
Correct Answer: ( B )
Question No.11
Which of the following pair doesn't have the same dimension?
- Work and Energy
- Impulse and Momentum
- Pressure and Stress
- Force and Pressure
Select Answer
Correct Answer: ( D )
Question No.12
Based on which of the following principle a rocket operates?
- Conservation of energy
- Conservation of momentum
- Bernoulli's Theorem
- Avogadro's concept
Select Answer
Correct Answer: ( B )
Question No.13
The bodies executing free falling motion have __________
- Equal velocity
- Equal momentum
- Equal acceleration
- Equal force
Select Answer
Correct Answer: ( A )
Question No.14
Who was the inventor of positron?
- J.J Thomson
- Chadwick
- Anderson
- Bohr
Select Answer
Correct Answer: ( C )
Question No.15
Curie is the unit of__________
- Radioactivity
- Temperature
- Heat
- Energy
Select Answer
Correct Answer: ( A )
Question No.16
Relative Humidity is measured by_______
- Cyclotron
- Hygrometer
- Avometer
- Barometer
Select Answer
Correct Answer: ( B )
Question No.17
The shortest unit of length is __________
- Micron
- Fermimeter
- Nanometer
- Angstrum
Select Answer
Correct Answer: ( B )
Question No.18
The theory of Gravity was given by________
- Charles Babbage
- Issac Newton
- Michael Faraday
- Max Planck
Select Answer
Correct Answer: ( B )
Question No.19
The coil in a heater is made of which of the following ?
- Nichrome
- Tungsten
- Copper
- Iron
Select Answer
Correct Answer: ( A )
Question No.20
In which medium an object weighs maximum?
- Air
- Water
- Vacuum
- Hydrogen
Select Answer
Correct Answer: ( C )
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