Recently Active Disucss Test Question Questions

Statement 1: In going from a denser to a rarer medium a ray of light bends towards the normal Statement 2: This occurs because light travels faster in a rarer medium than in a denser medium ...

Statement 1: We cannot accelerate neutrons by cyclotron Statement 2: Neutrons are much heavier than electron ...

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statement I - The plates of a parallel plate capacitor are connected to a battery. Charge on the plates increases on introducing a dielectric slab between the plates. statement II - Capacity increases and hence more charge is ...

Assertion Reasoning type Statement I - When a simple pendulum is made to oscillate on the surface of the moon, its time period increases. Statement II - Moon is much smaller compared to earth. ...

A uniform solid cylinder of density 0.8 g/cc floats in equilibrium in a combination of two non-mixing liquids A and B with its axis vertical. The The densities of liquids A and B are 0.7 g/cc and 1.2 g/cc. The height of liqui ...

A wire ABCDEF (with each side of length L) bent as shown in the figure and carrying a current I is placed in a uniform magnetic induction B parallel to the positive y-direction. The force experienced by the wire is *Image* ...

*Image* given values E1=6V, E2=2V, E3=3V R1=6Ω, R2=2Ω, R3=4Ω, R4=3Ω C=5μF the energy stored in the capacitor in steady state condition is ...

A simple pendulum has a time period T2 when on earth's surface , and T1 when taken to a height R above the earth's surface, where R is the radius of the earth. The value of T1/T2 is ...

A disk of radius r is rotating about its centre with an angular speed ω0. It is gently placed on a rough horizontal surface. After what time will it be in pure rolling? ...

*Image* A wedge of mass M and a block of mass m are shown in figure. The distance moved by wedge(in metres), when the block just reaches the ground is (friction is absent everywhere) ...

A block of mass m is placed on a rough horizontal surface. The coefficient of friction between the block and plane is μ. The minimum force required to displace the block on the plane is ...

A plane wave of wavelength λ is incident at an angle θ¸ on the plane mirror. Maximum intensity will be observed at P, when *Image* ...

Straight objective type *Image* Find the equivalent capacitance between A and B, capacitance of each capacitor is 2 μF ...

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match the following as lim(x→0) (24) 2-2cos2x /2x (a) -1 (25) xsin(2x)/(1-cos2x) (b) 0 (26) x/√(x2+|x|) (c) 1 (27) 6(sinx-x)/(x3+x2) (d) doesn't exist ...

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match the domains with functions for which it is defined (28) tantan-1x+sinsin-1x+coscos-1x (a) [-1,0] (29) sin-1cos-1x+cos-1sin-1x (b) [0,π/6] (30) sintan-1[x/√(1-x2)] (c) [2π/9,5π/18] (31) sin-1tan-1x (d) [-1,1] ...

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Equilibrium constant for dimerisation of acetic acid is ...

Kf for benzene is ...

comprehension for ques 67-69 0.02 Mole fraction of acetic acid in benzene given a solution having freezing point 277.4 K. Freezing point of benzene is 278.4 K and heat of fusion of benzene is 10.042 kJ/mol. If molarity of sol ...

E is ...

D is ...

comprehension for ques 64-66 With bromine and caustic potash a compound C4H9ON(A) yields compound B,C3H9N; with NaOH, compound (C) C4H7O2Na and with P2O5, C4H7N(D). On treatment with hydrochloric acid (D) gives C4H8O2(E) of w ...

The compound D on reaction with I2/NaOH and then acidification gives ...

The compound C is ...