The work done by friction is__________________?
The work done by friction is__________________?
A. positive
B. negative
C. zero
D. none of these
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The restoring force acting on the simple pendulum is given by_______________?
The restoring force acting on the simple pendulum is given by_______________?A. mg sin θ
B. mg sin θ
C. mg cos θ
D. mg cos θIf the wavelength of incident radiation is increased in photoemission then_________________?
If the wavelength of incident radiation is increased in photoemission then_________________?A. The maximum kinetic energy of the photoelectrons increases
B. The minimum kinetic energy of the photoelectrons decreases
C. The minimum kinetic energy of the photoelectrons increases
D. The average kinetic energy of the photoelectrons decreasesTo reduce the uncertainty in the timing experiment______________?
To reduce the uncertainty in the timing experiment______________?A. Highly precise instrument
B. Conduct at room temperature
C. Count number of vibration
D. Both a and CResistance of a conductor depends upon_________________?
Resistance of a conductor depends upon_________________?A. nature of conductor
B. dimension of conductor
C. physical state of the conductor
D. all of aboveWhen we excite some atoms by heat collision or electrical discharge they will________________?
When we excite some atoms by heat collision or electrical discharge they will________________?A. radiate electromagnetic energy with a continuous distribution of wavelength
B. absorb particular wavelengths when white light is incident on them
C. radiate electromagnetic energy of discrete characteristic wavelength
D. emit either invisible or visible lightIn the following figure, the terminal potential is ___________________ ?
In the following figure, the terminal potential is ___________________ ?A. zero
B. 2V
C. 12V
D. 36V