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Q) A sound wave having wavelength λ from stationary waves after reflection from surface . the distance between two consecutive nodes is
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Q) What is the resulting temperature t when 150 g of ice at 0 ℃ is mixed with 300 g of water at 50 ℃ ?
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Q) Which of the following preferred rpm for 4 pole induction motor?
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Q) An object placed at 60cm in front of a concave mirror makes an image 30 cm in front of the mirror, then what is the distance of the focus of the mirror.
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Q) A vehicle stops in 20 sec after applying brakes, if the constant retardation due to the brakes is 1.5 m/sec², then what was the initial velocity of the vehicle.
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Q) Time period of a simple pendulum is 1.5 sec. If the length of the pendulum is increased by 4 times then what is the new time period.
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Q) Consider a static point charge. if the charge is negative, then the electric line of the forces are :
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Q) A wire of resistance 10 Ω is elongated through a die to double its length . its resistance will change to
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Q) 50w and 250v is marked on a lamp. Then what is the value of the current flowing in the circuit.
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Q) The time period of a pendulum depends on
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