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Prove. Sec2 A + Cosec2 A = Sec2 A Cosec2 A

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A time-dependent force F = 6t acts on a particle of mass 1 kg. If the particle starts from rest, the work done by the force during the first 1 sec. will be :

asked Apr 1, 2021 in Physics by Doubtly (98.9k points)

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Two masses of 1 g and 4g are moving with equal kinetic energy. The ratio of the magnitudes of their momenta is

asked Apr 1, 2021 in Physics by Doubtly (98.9k points)

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Relation between energy density of electric field (UE) and magnetic field (UB) will be:

asked Mar 30, 2021 in Physics by Doubtly (98.9k points)

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The difference between angular speed of minute hand and second hand of a clock is

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The focal length f is related to the radius of curvature r of the spherical convex mirror by:

asked Mar 29, 2021 in Physics by Doubtly (98.9k points)

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A horizontal force of 10 N is necessary to just hold a block stationary against a wall. The coefficient of friction between the block and the wall is 0.2.

asked Apr 1, 2021 in Physics by Doubtly (98.9k points)

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Consider two satellites S1 and S2 with periods of revolution 1 hr and 8 hr respectively revolving around a planet in circular orbits.

asked Mar 29, 2021 in Physics by Doubtly (98.9k points)

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Which of the following is a tautology ? A) (∼p)∧(p∨q)→q

asked Mar 27, 2021 in Uncategorized by Doubtly (98.9k points)

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1 answer 362 views

During the padding of a bicycle, the force of friction exerted by the ground on the two wheels is such that it acts

asked Apr 1, 2021 in Physics by Doubtly (98.9k points)

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If f(x) = ∫t(sinx - sint)dt for t ∈ [0, x] then (A) f'''(x) + f''(x)

asked Apr 3, 2021 in Uncategorized by Doubtly (98.9k points)

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Expression for time in terms of G (universal gravitational constant), h (Planck constant) and c (speed of light) is proportional to :

asked Apr 5, 2021 in Physics by Doubtly (98.9k points)

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cos210° - cos10°cos50° + cos250° is equal to (1) 3/2 (2) 3/4 (3) 3/2(cos20° + 1) (4) 3/4(cos20° + 1)

asked Mar 11, 2021 in Uncategorized by anonymous

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The number of solution of the equation x+2tanx=π/2 in interval [0,2π] is

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The maximum value of 3cos theta+5sin{theta-π/6) for any real value of theta is

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How do I ace the 11th class Maharashtra boards?

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In photoelectric effect stopping potential for electromagnetic radiations depends on

asked Mar 30, 2021 in Physics by Doubtly (98.9k points)

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evaluate int x-1/(x+1)^3 e^x dx {integration question }

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The greatest coefficient in the expansion of (1+x) 2n+2 is

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How many chain isomers are possible in C5H12 , answer

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