1
MHT CET 2024 11th May Morning 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 2024 11th May Morning Shift Physics - Current Electricity Question 5 English

A
1.2 A
B
2.4 A
C
4 A
D
4.8 A
2
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Rails of material of steel are laid with gaps to allow for thermal expansion. Each track is 10 m long, when laid at temperature $17^{\circ} \mathrm{C}$. The maximum temperature that can be reached is $45^{\circ} \mathrm{C}$. The gap to be kept between the two segments of railway track is

$$\left(\alpha_{\text {steel }}=1.3 \times 10^{-5} /{ }^{\circ} \mathrm{C}\right)$$

A
1.68 mm
B
2.06 mm
C
3.64 mm
D
4.32 mm
3
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the potential difference used to accelerate electrons is doubled. By what factor does the deBroglie wavelength $(\lambda)$ associated with the electrons change?

A
$\lambda$ is increased to $\sqrt{2}$ times.
B
$\lambda$ is increased to $\frac{1}{\sqrt{2}}$ times.
C
$\lambda$ is decreased to $\frac{1}{\sqrt{2}}$ times.
D
$\lambda$ is decreased to $\sqrt{2}$ times.
4
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In an adiabatic process for an ideal gas, the relation between the universal gas constant ' $R$ ' and specific heat at constant volume ' $\mathrm{C}_{\mathrm{v}}$ ' is $R=0.4 C_v$. The pressure ' $P$ ' of the gas is proportional to the temperature ' $T$ ', of the gas as $T^k$. The value of constant ' K ' is

A
$\frac{7}{2}$
B
$\frac{7}{3}$
C
5
D
5
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