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

A light of wavelength '$$\lambda$$' and intensity '$$\mathrm{I}$$' falls on photosensitive material. If '$$\mathrm{N}$$' photo electrons are emitted, each with kinetic energy 'E', then

A
$$\mathrm{E} \propto \mathrm{I}, \mathrm{N} \propto \lambda$$
B
$$\mathrm{E} \propto \mathrm{I}, \mathrm{N} \propto \mathrm{I}$$
C
$$\mathrm{E} \propto \mathrm{I}, \mathrm{N} \propto \frac{1}{\lambda}$$
D
$$\mathrm{E} \propto \frac{1}{\lambda}, \mathrm{N} \propto \mathrm{I}$$
2
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The current drawn from the battery in the given network is (Internal resistance of the battery is negligible)

MHT CET 2021 24th September Evening Shift Physics - Current Electricity Question 51 English

A
2.4 A
B
1.6 A
C
2.0 A
D
3.0 A
3
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The moment of inertia of a thin uniform rod of mass 'M' and length 'L' about an axis passing through a point at a distance $$\frac{L}{4}$$ from one of its ends and perpendicular to the length of the rod is

A
$$\frac{\mathrm{ML}^2}{48}$$
B
$$\frac{7 \mathrm{ML}^2}{48}$$
C
$$\frac{5 \mathrm{ML}^2}{48}$$
D
$$\frac{9 \mathrm{ML}^2}{48}$$
4
MHT CET 2021 24th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A current $$I=10 \sin (100 \pi t)$$ ampere, is passed in a coil which induces a maximum emf $$5 \pi$$ volt in neighbouring coil. The mutual inductance of two coils is

A
$$5 \mathrm{~mH}$$
B
$$10 \mathrm{~mH}$$
C
$$15 \mathrm{~mH}$$
D
$$25 \mathrm{~mH}$$
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