Which instrument is suitable to measure the internal diameter of a test tube?

A. Vernier callipers
B. Screw gauge
C. Bore gauge
D. None

Joule Thomson effect is based upon __________ ?

A. Sudden compression of gases
B. Sudden expansion of gases
C. Cooling of gases
D. Heating of gases

Rutherford in his atomic model could not explain behavior of ___________ ?

A. Electrons
B. Protons
C. Neutrons
D. Neutrino

The mass-energy relation is the outcome of____________?

A. Quantum theory
B. General theory of relativity
C. Special theory of relativity
D. None of these

The centripetal acceleration produced in a rotating body is commonly due to change on_________of body?

A. Magnitude
B. Direction
C. Both
D. None of these

Who were the pioneers of Physics?

A. Egyptians
B. Greek
C. Latin
D. Persians

Name the SI unit having the symbol cd?

A. Candela
B. Cm
C. Ampere
D. Second

The symbol of the prefix used for Mega is_______?

A. G
B. H
C. M
D. E

Which of the following is not derived quantity________?

A. Time
B. Density
C. Volume
D. Area

The least count of Vernier caliper is ________ containing 10 Vernier scale divisions?

A. 0.001mm
B. 0.01mm
C. 0.1mm
D. 0.0001mm