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

Four holes of radius 5 cm are cut from a thin square plate of 20 cm and mass 1 kg. The moment of inertia of the remaining portion about Z-axis is

BITSAT 2022 Physics - Rotational Motion Question 4 English

A
15 kg-m2
B
0.37 kg-m2
C
0.0017 kg-m2
D
0.08 kg-m2
2
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

A particle of mass m is projected with velocity v at an angle $$\theta$$ with the horizontal. At its highest point, it explodes into two pieces of equal mass, one of the piece continue to move on the original trajectory, then the velocity of second piece is

A
2 v cos$$\theta$$
B
v cos$$\theta$$
C
3 v cos$$\theta$$
D
$$\frac{v}{2}$$ cos$$\theta$$
3
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

In the circuit shown assume the diode to be ideal. When Vi increases from $$-$$2V to 6V, the change in current is (in mA)

BITSAT 2022 Physics - Semiconductor Devices and Logic Gates Question 4 English

A
Zero
B
20
C
$$\frac{25}{8}$$
D
32
4
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
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