1
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two satellites A and B having ratio of masses $3: 1$ are revolving in circular orbits of radii ' $r$ ' and ' 4 r '. The ratio of total energy of satellites A to that of B is

A
$1: 3$
B
$3: 1$
C
$3: 4$
D
$12: 1$
2
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The current amplification factor of a transistor is 50 . The input resistance when used in common emitter mode is $1 \mathrm{k} \Omega$. The peak value for an a.c. input voltage of 0.01 V peak is

A
$100 \mu \mathrm{~A}$
B
0.01 mA
C
0.25 mA
D
$500 \mu \mathrm{~A}$
3
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Average power associated with an ideal inductor and ideal capacitor over a complete cycle of a.c. is respectively

A
zero, one
B
one, zero
C
zero, zero
D
one, one
4
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A metal rod of length ' $l$ ' rotates about one of its ends in a plane perpendicular to a magnetic field of induction ' $B$ '. If the e.m.f. induced between the ends of the rod is ' $e$ ', then the number of revolutions made by the rod per second is

A
$\frac{\mathrm{e}}{\mathrm{B} \pi^2 l}$
B
$\frac{\mathrm{e}}{\mathrm{B} \pi l^2}$
C
$\frac{\mathrm{B}^2}{\mathrm{e} \pi l}$
D
$\frac{\pi l^2}{\mathrm{eB}}$
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