Physics question and answers for September 12, 2024
- Q 21 Consider a block sliding over a smooth inclined surface of inclination 0 Relating to Newton s second law applied on the block select the incorrect alternative 1 F 0...
- Q 08 Cylindrical bucket B with water in it has mass 10 kg balances a mass of 12 kg A on horizontal surface as shown in the figure A place of...
- Q For the two blocks shown in the adjacent figure an external force of 18 N is applied on the lower block Find the acceleration of the upper block in m...
- Q Two radioactive sources A and B of half lives of 1 hour an 2 hours respectively initially contain the same number of radioactive atoms At the end of two hours...
- Q 2 111 A block of mass 10 kg connected to another hollow block of same size and negligible mass by a spring of spring constant 500 N m floats in...
- Q 5 The force acting on a particle F kv k constant If initial velocity of the particle is vo the velocity of particle in terms of time t is 1...
- Q 0 105 The velocity distribution in a viscous flow over a plate is given by u 4y y for y 2m where u velocity in m s at a point...
- Q 0 9 m cross section A is bent to form a circular arc of radius R forming three quarters of a A tube of circle A liquid of density p...
- Q FIGURE 1 35 In a certain region of space electric field is along the z direction throughout The magnitude of electric field is however not constant but increases uniformly along...
- Q A particle of mass m and charge q enters the region between the two charged plates initially moving along x axis with speed v like particle 1 in Fig 1...
- Q A body of mass M is kept on a rough horizontal surface friction coefficient A person is trying to pull the body by applying a horizontal force but the body...
- Q A small sphere of radius R is held against the inner surface of a larger sphere of radius 6R The masses of large and small spheres are 4M and M...
- Q Fill in the blanks for Sonometer 1 In sonometer if tension of wire and length of wire becomes double and mass per unit length of wire remain constant then fundamental...
- Q Across a metallic conductor of non uniform cross section a constant potential difference is applied The quantity which remains constant along the conductor is a drift velocity c current density...
- Q What must be the ratio of the slit width to the wavelength for a single slit to have the first diffraction minimum at 45 0 Ans 1 27
- Q 69 A smooth massless wedge is pushed by a horizontal force P P m 0 Ar tr 1 If P 0 than N mgcos0 N Normal reaction received by the...
- Q 1 The unit of thermal conductivity is a Wm K 1 c Jm K 2015 b JmK d Wm K
- Q A small mass atta to a string rotates on a frictionless table top as shown If the tension in the string is increased by pulling the string causing the radius...
- Q Five point masses m each are kept at five vertices of a regular pentagon Distance of centre of pentagon from any one of the vertices is a Find gravitational potential...
- Q A radioactive nucleus decay as follows X X X if the atomic number and the mass number of X are 72 and 180 then the mass number and atomic number...
- Q In the system shown in figure tension T2 is xg then what s the value of x g 10 m s T q g 3 700 Ts 1 kg AT2...
- Q Two carts of masses 200 kg and 300 kg on horiz are pushed apart Suppose the coefficient of friction between the carts and the rails are same If the 200...
- Q The instantaneous angular position of a point o a rotating wheel is given by the equatio 0 t 2t3 6t The torque on the wheel become zero at 1 t...
- Q Transverse elastic waves can be propagate in 1 Both solid gas 2 In solid but not gas 3 Neither solid nor gas 4 None
- Q Q 2 A short straight object of length lies along the central axis of a spherical concave mirror at a distance X from the mirror The focal length of the...
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