MHT CET 2024 15th May Morning Shift | MHT CET Year Wise Previous Years Questions

An open organ pipe of length ' $l$ ' is sounded together with another open organ pipe of length $\left(l+l_1\right)$ in their fundamental modes. Speed of sound in air is ' $V$ '. The beat frequency heard will be ( $\left.l_1< < l\right)$

$\frac{\mathrm{V} l_1^2}{2 l}$

$\frac{\mathrm{V} l_1}{2 l^2}$

$\frac{\mathrm{V} l_1}{4 l^2}$

$\frac{\mathrm{v} l^2}{2 l_1}$

MHT CET 2024 15th May Morning Shift

MCQ (Single Correct Answer)

-0

When a coil is connected to a d.c. source of e.m.f. 12 volt; then the current of 4 A flows in it . If the same coil is connected to a 12 volt, 50 Hz a.c. source, then the current flowing in it is 2.4 A . Then self-inductance of the coil will be

48 H

12 H

$\frac{4}{\pi} \times 10^{-2} \mathrm{H}$

$\frac{8}{\pi} \times 10^{-2} \mathrm{H}$

MHT CET 2024 15th May Morning Shift

MCQ (Single Correct Answer)

-0

The ratio of work done by an ideal rigid diatomic gas to the heat supplied by the gas in an isobaric process is

$\frac{3}{7}$

$\frac{2}{7}$

$\frac{4}{7}$

$\frac{5}{7}$