Learn To Converge Your Dreams with Durgam Vigyan Sansthana Institute. IIT JEE Physics MCQs

IIT JEE Physics MCQs

Below are multiple-choice physics questions with detailed solutions. Click "View Solution" to reveal the explanation.

Question 1: A ball is thrown vertically upwards with a velocity of 20 m/s. What is the maximum height reached? (g = 9.8 m/s²)

A) 10.2 m B) 15.3 m C) 20.4 m D) 25.5 m

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Solution:

We use the equation of motion:

v² = u² - 2gh

At the maximum height, v = 0. Substituting the values:

0 = (20)² - 2(9.8)h

400 = 19.6h

h = 400 / 19.6

h = 20.41 m

Correct answer: C) 20.4 m

Question 2: A block of mass 5 kg is pushed on a frictionless surface with a force of 10 N. What is the acceleration?

A) 1 m/s² B) 2 m/s² C) 3 m/s² D) 4 m/s²

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Solution:

We use Newton's second law:

F = ma

Acceleration, a = F / m

a = 10 / 5

a = 2 m/s²

Correct answer: B) 2 m/s²

Question 3: A capacitor of capacitance 10 μF is charged to 50 V. What is the energy stored in the capacitor?

A) 0.01 J B) 0.0125 J C) 0.02 J D) 0.025 J

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Solution:

The energy stored in a capacitor is given by:

U = (1/2)CV²

Substitute the values:

U = 0.5 × 10 × 10^-6 × (50)²

U = 0.5 × 10 × 10^-6 × 2500

U = 0.0125 J

Correct answer: B) 0.0125 J

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