1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

A hollow prism is filled with water and placed in air. It will deviate the incident rays

A
Towards or away from the base
B
Away from the base
C
Parallel to the base
D
Towards the base
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

The number of possible natural oscillations of air column in a pipe closed at one end of length $$85 \mathrm{~cm}$$ whose frequencies lie below $$1250 \mathrm{~Hz}$$ are (velocity of sound $$=340 \mathrm{~ms}^{-1}$$)

A
6
B
8
C
4
D
5
3
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

The figure shows a network of five capacitors connected to a 20 V battery. Calculate the charge acquired by each 10 $$\mu$$F capacitor.

COMEDK 2024 Evening Shift Physics - Capacitor Question 1 English

A
$$2 \times 10^{-4} \mathrm{C}$$
B
$$4 \times 10^{-4} \mathrm{C}$$
C
$$6 \times 10^{-4} \mathrm{C}$$
D
$$1 \times 10^{-4} \mathrm{C}$$
4
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the relation obeyed by the angles of contact $$\theta_1, \theta_2$$ and $$\theta_3$$ of 3 liquids of different densities $$P_1, P_2$$ and $$P_3$$ respectively $$(\mathrm{P}_1 < \mathrm{P}_2 < \mathrm{P}_3$$) when they rise to the same capillary height in 3 identical capillaries and having nearly same surface tension $$\mathrm{T}$$ ?

A
$$ 0 \leq \theta_3<\theta_2<\theta_1<\frac{\pi}{2} $$
B
$$ \frac{\pi}{2}>\theta_1>\theta_2>\theta_3 \geq 0 $$
C
$$ \pi>\theta_1>\theta_2>\theta_3 \geq \frac{\pi}{2} $$
D
$$ 0 \leq \theta_1<\theta_2<\theta_3<\frac{\pi}{2} $$
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