A bubble is rising from bottom of a lake. The volume of bubble becomes
A bubble is rising from bottom of a lake. The volume of bubble becomes 8 times as it reaches the…
7 years ago
AFMC2006
34 gram of water at 30⁰C is poured into a calorimeter at 15⁰C.
34 gram of water at 30⁰C is poured into a calorimeter at 15⁰C. The temperature of water is 20⁰C when…
7 years ago
In adiabatic expansion, product of PV
In adiabatic expansion, product of PV Options (a) Decreases (b) Increases (c) Changes erratically (d) None of these Correct Answer:…
7 years ago
The order of the electric field near the earth’s surface is
The order of the electric field near the earth's surface is Options (a) 100 v/m (b) 500 v/m (c) 200…
7 years ago
Two point charges +2 coulomb and +10 coulomb repel each other with a force of 12 N.
Two point charges +2 coulomb and +10 coulomb repel each other with a force of 12 N. Charges of -2…
7 years ago
The current through an inductor changes from 3 A to 2 A is 1 m/s. If induced e.m.f.
The current through an inductor changes from 3 A to 2 A is 1 m/s. If induced e.m.f. in inductor…
7 years ago
Which of the following is the function of the step-up transformer?
Which of the following is the function of the step-up transformer? Options (a) Low voltage, high current to high voltage…
7 years ago
We get Balmer series when electron comes from
We get Balmer series when electron comes from Options (a) Higher to 2nd orbit (b) 2nd to higher orbit (c)…
7 years ago
If alpha, beta and gamma rays carry same momentum, which has the longest
If alpha, beta and gamma rays carry same momentum, which has the longest wavelength Options (a) Alpha rays (b) Beta…
7 years ago
Photoelectric current from a given photocell will depend upon
Photoelectric current from a given photocell will depend upon Options (a) Number of photons striking per second (b) Frequency of…
7 years ago