1
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A perfect gas of volume 10 litre n compressed isothermally to a volume of 1 litre. The rms speed of the molecules will

A
decrease 5 times
B
remain unchanged
C
increase 5 times
D
increase 10 times
2
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

In the arrangement of the capacitors as shown in figure, each capacitor is of 6 $$\mu$$F, then equivalent capacity between points A and B is

MHT CET 2021 20th September Evening Shift Physics - Capacitor Question 32 English

A
12 $$\mu$$F
B
6 $$\mu$$F
C
4 $$\mu$$F
D
10 $$\mu$$F
3
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The relation obeyed by a perfect gas during an adiabatic process is $$\mathrm{PV}^{3 / 2}$$. The initial temperature of the gas is '$$\mathrm{T}$$'. When the gas is compressed to half of its Initial volume, the final temperature of the gas is

A
$$2 \sqrt{2} \mathrm{~T}$$
B
$$4 \mathrm{~T}$$
C
$$\sqrt{2} \mathrm{~T}$$
D
$$2 \mathrm{~T}$$
4
MHT CET 2021 20th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the additional energy that should be supplied to a moving electron to reduce its de Broglie wavelength from $$1 \mathrm{~nm}$$ to $$0.5 \mathrm{~nm}$$ ?

A
Four times its initial energy.
B
Five times its initial energy.
C
Two times its initial energy.
D
Three times its initial energy.
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