1
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two sounding sources send waves at certain temperature in air of wavelength $$50 \mathrm{~cm}$$ and $$50.5 \mathrm{~cm}$$ respectively. The frequency of sources differ by $$6 \mathrm{~Hz}$$. The velocity of sound in air at same temperature is

A
$$300 \mathrm{~m} / \mathrm{s}$$
B
$$303 \mathrm{~m} / \mathrm{s}$$
C
$$313 \mathrm{~m} / \mathrm{s}$$
D
$$330 \mathrm{~m} / \mathrm{s}$$
2
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In the given circuit, r.m.s. value of current through the resistor $$\mathrm{R}$$ is

MHT CET 2023 12th May Morning Shift Physics - Alternating Current Question 41 English

A
$$2 \mathrm{~A}$$
B
$$0.5 \mathrm{~A}$$
C
$$20 \mathrm{~A}$$
D
$$2 \sqrt{2} \mathrm{~A}$$
3
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A particle of mass '$$m$$' moving east ward with a speed '$$v$$' collides with another particle of same mass moving north-ward with same speed '$$v$$'. The two particles coalesce after collision. The new particle of mass '$$2 \mathrm{~m}$$' will move in north east direction with a speed (in $$\mathrm{m} / \mathrm{s}$$ )

A
$$\mathrm{V}$$
B
$$2 \mathrm{~V}$$
C
$$\frac{\mathrm{V}}{2}$$
D
$$\frac{\mathrm{V}}{\sqrt{2}}$$
4
MHT CET 2023 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The height at which the weight of the body becomes $$\left(\frac{1}{9}\right)^{\text {th }}$$ its weight on the surface of earth is $$(\mathrm{R}=$$ radius of earth)

A
8R
B
4R
C
3R
D
2R
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