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Hello sir I am here as I want to know which type of question are generally asked in Chemistry of West Bengal Joint Entrance Examination (WBJEE) so will you please provide me sample question paper of chemistry of West Bengal Joint Entrance Examination (WBJEE)?
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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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