1
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

The de-Broglie wavelength of an electron moving with a velocity $$\frac{c}{3}$$ (c = 3 $$\times$$ 108 m/s) is equal to the wavelength of photon. The ratio of the kinetic energies of electron and photon is

A
1 : 4
B
1 : 3
C
1 : 2
D
2 : 1
2
BITSAT 2021
MCQ (Single Correct Answer)
+3
-1

The potential difference applied to an X-ray tube is decreased. As a result, in the emitted radiation,

A
the intensity increases
B
the intensity decreases
C
the minimum wavelength increases
D
the minimum wavelength decreases
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