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

A black body radiates power ' P ' and maximum energy is radiated by it at a wavelength $\lambda_0$. The temperature of the black body is now so changed that it radiates maximum energy at the wavelength $\frac{\lambda_0}{4}$. The power radiated by it at new temperature is

A
64 P
B
256 P
C
4 P
D
16 P
2
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In Young's double slit experiment using monochromatic light of wavelength ' $\lambda$ ', the maximum intensity of light at a point on the screen is ' K ' units. The intensity of light at a point where the path difference is $\frac{\lambda}{6}$ ' is $\left(\cos 60^{\circ}=\sin 30^{\circ}=0.5, \sin 60^{\circ}=\cos 30^{\circ}=\sqrt{3} / 2\right)$

A
$\frac{3 \mathrm{~K}}{4}$
B
$\frac{\mathrm{K}}{4}$
C
$\frac{\mathrm{K}}{2}$
D
$\mathrm{K}$
3
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

When a capacitor is connected in series LR circuit, the alternating current flowing in the circuit

A
is zero.
B
remains constant.
C
increases.
D
decreases.
4
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
 

The correct relation between total magnetic field $(B)$, magnetic intensity $(\mathrm{H})$, permeability of free space $\left(\mu_0\right)$ and susceptibility $(\chi)$ is

A
$\frac{B}{H}=\mu_0(1-\chi)$
B
$\frac{\mathrm{B}}{\mathrm{H}}=\mu_0(1+\chi)^2$
C
$\frac{\mathrm{B}}{\mathrm{H}}=\mu_0(1+\chi)$
D
$\frac{\mathrm{B}}{\mathrm{H}}=\mu_0(1-\chi)^2$
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