A. X-rays
B. B-rays
C. γ-rays
D. All have the equal penetrating powe
Related Mcqs:
- The penetrating power of X-rays depends on their______________?
A. applied voltage
B. frequency
C. source
D. all of the above - Which one of the following radiations possesses maximum velocity ?
A. α-rays
B. β-rays
C. γ-rays
D. All of above have the same speed - Which one of the following possesses greater penetration power ?
A. α-rays
B. β-rays
C. γ-rays
D. Neutron-rays - The maximum safe limit dose for persons working in a nuclear power station is ________________?
A. 1 rem per week
B. 5 rem per week
C. 4 rem per week
D. 3 rem per week - 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 decreases - Radiation with wavelength longer than red lights______________?
A. ultraviolet rays
B. X-rays
C. infra red radiation
D. visible radiation - Radiation produced from TV picture tube is_____________?
A. B-rays
B. X-rays
C. Far infrared
D. Infrared - UV radiation can be produced by______________?
A. Heating the filament
B. Electron excitation in the gas
C. Ionization of atoms
D. All the above - Three equal resistors connected in series with a source of e m f together dissipate 10 W of power each. What will be the power dissipated if the same resistors are connected in parallel across the same source of e m f ?
A. 40 W
B. 90W
C. 100W
D. 120W - The average power and instantaneous power become equal if work is done at __________________?
A. any rate
B. at variable rate
C. at uniform rate
D. at high rate
