1
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Kinetic energy of a proton is equal to energy $E$ of a photon. Let ' $\lambda_1$ ' be the de-Broglie wavelength of proton and ' $\lambda_2$ ' be the wavelength of photon. If $\left(\frac{\lambda_1}{\lambda_2}\right) \propto E^n$ then the value of ' $n$ ' is

A
1
B
2
C
5
D
0.5
2
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

An inductance of 2 mH , a condenser of $20 \mu \mathrm{~F}$ and a resistance of $50 \Omega$ are connected in series to an a.c. source. The reactance of inductor and condenser are same. The reactance of either of them will be

A
$100 \Omega$
B
$50 \Omega$
C
$40 \Omega$
D
$10 \Omega$
3
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Two sound waves having frequencies 250 Hz and 256 Hz superimpose to produce beat wave. The resultant beat wave has intensity maximum at $\mathrm{t}=0$. After how much time an intensity will be minimum produced at the same point?

A
$\frac{1}{6} \mathrm{~s}$
B
$\frac{1}{24} \mathrm{~s}$
C
$\frac{1}{18} \mathrm{~s}$
D
$\frac{1}{12} \mathrm{~s}$
4
MHT CET 2024 16th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A body travelling with uniform acceleration crosses two points A and B with velocities $20 \mathrm{~m} / \mathrm{s}$ and $30 \mathrm{~m} / \mathrm{s}$ respectively. The speed of the body at mid point of A and B is (nearly)

A
$25 \mathrm{~m} / \mathrm{s}$
B
$25.5 \mathrm{~m} / \mathrm{s}$
C
$24 \mathrm{~m} / \mathrm{s}$
D
$10 \sqrt{6} \mathrm{~m} / \mathrm{s}$
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