1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

The dimensions [MLT$$-$$2A$$-$$2] belong to the

A
Magnetic flux
B
Self inductance
C
Magnetic permeability
D
Electric permittivity
2
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

In half wave rectification, if the input frequency is 60 Hz, then the output frequency would be

A
Zero
B
30 Hz
C
60 Hz
D
120 Hz
3
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

If the initial tension on a stretched string is doubled, then the ratio of the initial and final speeds of a transverse wave along the string is

A
1 : 1
B
$$\sqrt2$$ : 1
C
1 : $$\sqrt2$$
D
1 : 2
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

A shell of mass m is at rest initially. It explodes into three fragments having mass in the ratio 2 : 2 : 1. If the fragments having equal mass fly off along mutually perpendicular directions with speed v, the speed of the third (lighter) fragment is :

A
v
B
$$\sqrt2$$v
C
2$$\sqrt2$$v
D
3$$\sqrt2$$v
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