Which of the following is NOT a Fundamental S.I unit?
Metre
Ampere
Newton
Second
Correct answer is C
No explanation has been provided for this answer.
Which gas produces a red coloured light in a discharge tube?
Mercury
Argon
Air
Neon
Correct answer is D
No explanation has been provided for this answer.
2.9x105kg
9.5x10-7kg
9.5x10-3kg
2.9x104kg
Correct answer is C
Mass = ZIT kg
Mass = 3.3 x 10-7 x 4 x 2 x 60 x 60 kg
Mass = 9.5 x 10-3kg
When an atom undergoes a beta decay, the atomic number of the nucleus
Remains unchanged
Decreases by one
Increases by one
Becomes zero
Correct answer is C
No explanation has been provided for this answer.
The magnitude of the angle of dip at the equator is
360o
0o
90o
180o
Correct answer is B
No explanation has been provided for this answer.