1
BITSAT 2024
MCQ (Single Correct Answer)
+3
-1
Two wires of the same material (Young's modulus $ =Y $ ) and same length $ L $ but radii $ R $ and $ 2 R $ respectively, are joined end to end and a weight $ w $ is suspended from the combination as shown in the figure. The elastic potential energy in the system is

BITSAT 2024 Physics - Elasticity Question 1 English

A
$ \frac{3 w^{2} L}{4 \pi R^{2} Y} $
B
$ \frac{3 w^{2} L}{8 \pi R^{2} Y} $
C
$ \frac{5 w^{2} L}{8 \pi R^{2} Y} $
D
$ \frac{w^{2} L}{\pi R^{2} Y} $
2
BITSAT 2024
MCQ (Single Correct Answer)
+3
-1
A parallel plate capacitor consists of two circular plates of radius $ R=0.1 \mathrm{~m} $. They are separated by a short distance. If electric field between the capacitor plates changes as $ \frac{d E}{d t}=6 \times 10^{13} \frac{\mathrm{~V}}{\mathrm{~m} \times \mathrm{s}} $, then the value of displacement current is
A
15.25 A
B
6.25 A
C
16.67 A
D
4.69 A
3
BITSAT 2024
MCQ (Single Correct Answer)
+3
-1
Power of biconvex lens is $ P $ diopter. When it is cut into two symmetrical halves by a plane containing the principal axis. The ratio of power of two halves is
A
$ 1:2 $
B
$ 2:1 $
C
$ 1:4 $
D
$ 1:1 $
4
BITSAT 2024
MCQ (Single Correct Answer)
+3
-1
In the given cycle $ A B C D A $, the heat required for an ideal monoatomic gas will be

BITSAT 2024 Physics - Heat and Thermodynamics Question 1 English

A
$ p_{0} V_{0} $
B
$ \frac{13}{2} p_{0} V_{0} $
C
$ \frac{11}{2} p_{0} V_{0} $
D
$ 4 p_{0} V_{0} $
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