Physics question and answers for August 07, 2024
- Q If the shift of wavelength of the light emitted by a star is towards violet then this shows that star is Stationary Moving towards the earth Moving away from the...
- Q 4 3 2 Y 4r Y 9 A cube of side 40 mm has its upper face displace by 0 1 mm by a tangential force of 8 kN TH...
- Q 1 d F F A F 2 The lever force F is usually some weight to be lifted It is called the load and its distances from the fulcrum d...
- Q The graph in the broken line represents one for a given freq and intensity of the incident radiatio freq is increased and the intensity is reduced which of the following...
- Q D X masses are m 133 0g mg 228 0g mc 573 0g and mp 313 0g what are the coordinates of the center of mass if the origin is...
- Q horizontal plane with constant speed Its angular momentum about hinge X l m 1 Conserved 2 Only direction is conserved not the magnitude 3 Only magnitude is conserved not the...
- Q If v P qt rt Then net force acting on this particle will be zero at t 2 if 1 p 3 q 0 1 3 2 9 3 4...
- Q A block of mass 5 kg is suspended by two light strings 1 and 2 as shown in figure If T and T2 be tension in strings 1 and 2...
- Q 2 The position x time t graph for a particle moving along a straight line is shown in figure The average speed of particle in time interval t 0 to...
- Q An alternating voltage E Eo sin wt is applied across a coil of inductor L TH current flowing through the circuit at any instant is ONO No Eo wL Eo...
- Q 3 1 25 x 10 1 Nm 2 4 16 x 10 Nm 8 Two wires of length I radius r and length 21 radius 2r respectively having same Young...
- Q 36 1 7777 F 3 of static friction is always more than the coefficient of kinetic friction A block of mass m is placed at rest on a rough horizontal...
- Q 17 A particle moves on a given straight line with a constant speed v At a certain time it is at a point P on its straight line path O...
- Q A lamina is made by removing a small disc of diameter 2R from a bigger disc of uniform mass density and radius 2R as shown in the figure The moment...
- Q change If same torque was provided on a hard boiled egg raw egg to spin on a table then 1 Hard boiled egg will have higher angular acceleration 2 Raw...
- Q What are the human body examples of class 2 and class 3 levers A nut cracker of length 9 cm has its effort situated at a distance of 6 cm...
- Q In the given figure all surfaces are smooth The system is released from rest Find the value of m in kg for which 1kg block does not slide on wedge...
- Q by the equation A reflecting sur x y a A ray travelling in negative x direction is directed towards positive y direction after reflection from the surface at point P...
- Q Sirius A has a luminosity of 26 LSun and a surface temperature of about 9400 K Part A What is its radius Hint See Cosmic Calculations 12 2 Radius of...
- Q A conductor moves with a velocity 12m s at an angle of 90 to a magnetic field produced between two square faced poles of side length 2cm If the flux...
- Q of the following are correct a For a general rotational motion angular momentum L and angular velocity a need not be parallel b For a general rotational motion angula momentum...
- Q Calculate the energy generated in MeV when 0 1 kg of Li is converted to He by proton bombardmen Given masses of Li He and H in a m u...
- Q If two S H M of same frequency and amplitude are super mposed in same phase on the particle of mass m The motion of the particle will be 1...
- Q Let denote the dimensional formula of the permittivity of vacuum If M mass L length T time and I electric current Then No 80 M L T 1 20 ML...
- Q A uniform chain of mass m and length is held on a horizontal frictionless table with 1 2th of its length hanging over the edge of the table The wok...
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