Radiation produced from TV picture tube is_____________?
Radiation produced from TV picture tube is_____________?
A. B-rays
B. X-rays
C. Far infrared
D. Infrared
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When a body is moving along a circular path it covers a certain angle in a given interval of time. Such type of motion is__________________?
When a body is moving along a circular path it covers a certain angle in a given interval of time. Such type of motion is__________________?A. Vibratory motion
B. Linear motion
C. Rotatory motion
D. Angular motionIn an X-ray tube electrons each of charge e are accelerated through V potential difference allowed to hit a metal target. The wavelength of the X-rays emitted is_______________?
In an X-ray tube electrons each of charge e are accelerated through V potential difference allowed to hit a metal target. The wavelength of the X-rays emitted is_______________?A. he/ev
B. he/Vc
C. eV/h
D. impossible to predictOne kilowatt hour is the amount of energy delivered during _______________?
One kilowatt hour is the amount of energy delivered during _______________?A. one second
B. one day
C. one minute
D. one hourTwo identical coaxial circular loops carry equal currents in the same direction. If the loops approach each other the current in______________?
Two identical coaxial circular loops carry equal currents in the same direction. If the loops approach each other the current in______________?A. Each increase
B. Each decrease
C. Each remains the same
D. One increases whereas that in the other decreasesWhich one of the following bulbs has the least resistance ?
Which one of the following bulbs has the least resistance ?A. 100 watt
B. 200 watt
C. 300 watt
D. 60 wattThe velocity of a particle of mass m of de-Broglie wavelength λ is______________?
The velocity of a particle of mass m of de-Broglie wavelength λ is______________?A. v = 3 ×× 106 ms-1
B. v = 2 ×× 10 ms-1
C. v = 2 ×× 6 ms-1
D. v = 2 ×× 106 ms-1