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Old June 26th, 2016, 09:17 AM
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Join Date: Dec 2012
Default Re: WBJEE Exam Type

Hey!!! As per your demand here I am providing you sample question paper of chemistry of West Bengal Joint Entrance Examination (WBJEE)

1. Following two wave trains are approaching each other.
y1 = a sin 200 π t y2 = a sin 208 π t
The number of beats heard per second is :
A. 8 B. 4 C. 1 D. 0

2. One of the geo-stationary satellites of India is vertically above
A. New Delhi B. Mumbai C. Allahabad D. None of these

3. Light of wavelength 2400 x 10-10 m in air will become light of wavelength in glass (μ = 1.5)
equal to
A. 1600 x 10-10 m B. 7200 x 10-10 m C. 1080 x 10-10 m D. none of these

4. The ratio of secondary to primary turns is 4:5. If power input is P, what will be the ratio of
power output (neglect all losses) to power input ?
A. 4:9 B. 9:4 C. 5:4 D. 1:1

5. Lenz's law applies to
A. electrostatics B. lenses
C. electro-magnetic induction D. cinema slides

6. If a proton and anti-proton come close to each other and annihilate, how much energy will be
released ?
A. 1.5 x 10-10 J B. 3 x 10-10 J C. 4.5 x 10-10 J D. none of these

8. A charge is placed at the centre of a cube, what is the electric flux passing through one of its faces?
A. (1/6) x (q/ε0) B. q/ε0 C. 6q/ε0 D. None of these

9. What is the degree of freedom in case of a mono atomic gas ?
A. 1 B. 3 C. 5 D. None of these

10. The ratio of secondary to primary turns is 4:5. If power input is P, what will be the ratio of
power output (neglect all losses) to power input ?
A. B. C. D.

11. Speed of recession of galaxy is proportional to its distance

B. p-type semi-conductor

C. intrinsic semi- conductor

D. none of these

A. directly B. inversely C. exponentially D. none of these


12. If a substance goes in a magnetic field and is pushed out of it, what is it ?
A. Paramagnetic B. Ferromagnetic C. Diamagnetic D. Antiferromagnetic

13. Which is not a scalar quantity?
A. Work B. Power C. Torque D. Gravitational

14. Minimum energy required to excite an electron in a Hydrogen atom in ground state is :
A. -13.6 eV B. 13.6 eV C. 10.2 eV D. 3.4 eV

15. If Gravitational Constant is decreasing in time, what will remain unchanged in case of a
satellite orbiting around earth ?
A. Time period B. Orbiting radius C. Tangential velocity D. Angular velocity
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