Day 30: MH HSC Class 12 Physics

5 questions. Try each one first, then open its answer.

Question 1
Oscillations. This type asked 2 times: Mar 2019, Jun 2025. This one: Jun 2025
Q. 11 $\dfrac{d^{2}x}{dt^{2}} = -36x$
Question 2
Semiconductor Devices. This type asked 2 times: Feb 2024, Jun 2025. This one: Jun 2025
Q. 30 $Define logic gate and explain why NOT gate is called an inverter. The transistor is in the common emitter configuration. Its DC current gain is 50. If collector current is 3mA, calculate the base current.$
Question 3
Superposition of Waves. This type asked 2 times: Mar 2022, Jun 2025. This one: Jun 2025
Q. 1(ii) $Which of the following equation represents a simple harmonic progressive wave travelling along the negative X-direction?$
Tap an option to check your answer.
Question 4
Kinetic Theory of Gases and Radiation. This type asked 2 times: Jul 2024, Feb 2025. This one: Feb 2025
Answer the following questions :
Q. 2(viii) $Find kinetic energy of 1 litre of an ideal gas at S.T.P.$
Question 5
Magnetic Fields due to Electric Current. This type asked 2 times: Feb 2024, Feb 2025. This one: Feb 2025
Q. 5 $State the formula for magnetic induction produced by a current in a circular arc of a wire. Hence find the magnetic induction at the centre of a current carrying circular loop.$

Question 1