# WBJEE 2014 Solved Physics Question Paper – Part 2

May 4, 2017 18:12 IST

Find WBJEE 2014 Solved Physics Question Paper – Part 2 in this article. This paper consists of 5 questions (#6 to #10) from WBJEE 2014 Physics paper. Detailed solution of these questions has been provided so that students can match their solutions.

Importance of Previous Years’ Paper:

Previous years’ question papers help aspirants in understanding exam pattern, question format, important topics and assessing preparation. It has also been seen that sometimes questions are repeated in WBJEE Exam. So, this paper will certainly boost your confidence.

WBJEE is a common entrance examinations held at state level for admission to the undergraduate level engineering and medical courses in the state of West Bengal. The Physics  section of WBJEE 2014 engineering entrance exam consists of 40 questions.

Q6. A cricket ball thrown across a field is at heights h1 and h2 from the point of projection at times t1 and t2 respectively after the throw. The ball is caught by a fielder at the same height as that of projection. The time of flight of the ball in this journey is

Q7. A smooth massless string passes over a smooth fixed pulley. Two masses m1 and m2 (m1 > m2) are tied at the two ends of the string. The masses are allowed to move under gravity starting from rest. The total external force acting on the two masses is

Q8. To determine the coefficient of friction between a rough surface and a block, the surface is kept inclined at 45° and the block is released from rest. The block takes a time t in moving a distance d. The rough surface is then replaced by a smooth surface and the same experiment is repeated. The block now takes a time t/2 in moving down the same distance d. The coefficient of friction is

(A) 3/4

(B) 5/4

(C) 1/2

(D) 1/√2

Ans: (A)

Sol:

Q9. A wooden block is floating on water kept in a beaker. 40% of the block is above the water surface. Now the beaker is kept inside a lift that starts going upward with acceleration equal to g/2. The block will then

(A) sink

(B) float with 10% above the water surface

(C) float with 40% above the water surface

(D) float with 70% above the water surface

Ans: (C)

Sol.

The block will float with 40% above the water surface.

Q10. An electron in a circular orbit of radius .05 nm performs 1016 revolutions per second. The magnetic moment due to this rotation of electron is (in Am2)

(A) 2.16 × 10–23

(B) 3.21 × 10–22

(C) 3.21 × 10–24

(D) 1.26 × 10–23

Ans: (D)

Sol:

Let the magnetic moment be M.

So, the correct option is D.

Also Get:

WBJEE Online Test

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