1
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

A bob is whirled in a horizontal plane by means of a string with an initial speed of $$\omega \mathrm{~rpm}$$. The tension in the string is $$T$$. If speed becomes $$2 \omega$$ while keeping the same radius, the tension in the string becomes:

A
$$T$$
B
$$4 T$$
C
$$\frac{T}{4}$$
D
$$\sqrt{2} T$$
2
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

Consider the following statements A and B and identify the correct answer :

NEET 2024 Physics - Semiconductor Electronics Question 6 English

A. For a solar-cell, the I-V characteristics lies in the IV quadrant of the given graph.

B. In a reverse biased $$p n$$ junction diode, the current measured in $$(\mu \mathrm{A})$$, is due to majority charge carriers.

A
$$A$$ is correct but $$B$$ is incorrect
B
$$A$$ is incorrect but $$B$$ is correct
C
Both A and B are correct
D
Both $$A$$ and $$B$$ are incorrect
3
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

A thermodynamic system is taken through the cycle $$abcda$$. The work done by the gas along the path $$b c$$ is:

NEET 2024 Physics - Heat and Thermodynamics Question 9 English

A
Zero
B
30 J
C
$$-$$90 J
D
$$-$$60 J
4
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

A thin spherical shell is charged by some source. The potential difference between the two points $$C$$ and $$P$$ (in V) shown in the figure is:

(Take $$\frac{1}{4 \pi \varepsilon_0}=9 \times 10^9$$ SI units)

NEET 2024 Physics - Electrostatics Question 5 English

A
$$3 \times 10^5$$
B
$$1 \times 10^5$$
C
$$0.5 \times 10^5$$
D
Zero
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