1
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A particle performing linear S.H.M. of amplitude $$0.1 \mathrm{~m}$$ has displacement $$0.02 \mathrm{~m}$$ and acceleration $$0.5 \mathrm{~m} / \mathrm{s}^2$$. The maximum velocity of the particle in $$\mathrm{m} / \mathrm{s}$$ is

A
0.05
B
0.50
C
0.01
D
0.25
2
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The electric field intensity on the surface of a charged solid sphere of radius '$$r$$' and volume charge dentiy '$$\rho$$' is given by ($$\epsilon_0=$$ permittivity of free space)

A
zero
B
$$\frac{\sigma \pi}{3 \epsilon_0}$$
C
$$\frac{1}{4 \pi \epsilon_0} \frac{\sigma}{r}$$
D
$$\frac{5 \pi}{6 \epsilon_0}$$
3
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A step up transformer operates on $$220 \mathrm{~V}$$ and supplies current of $$2 \mathrm{~A}$$. The ratio of primary and secondary windings is $$1: 20$$. The current in the primary is

A
5 A
B
2 A
C
40 A
D
20 A
4
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The ratio of maximum to minimum wavelength in Balmer series of hydrogen atom is

A
36 : 5
B
3 : 4
C
9 : 5
D
5 : 9
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