Physics question and answers for September 08, 2024
- Q 1 25 minute 3 12 minute 4 12 5 minute 12 In a house individual power of two elements are 100 W and 150 W Effective power of their series...
- Q Two persons starts moving with same speed 5 m s One in the direction of north and other is in the direction of east as in figure Angular velocity of...
- Q 4 Inc 76 Stress vs strain graph for two different wires A and Bis given If Y and Y are Young s modulus of material A B then Stress 1...
- Q 38 It is raining at 20 m s in still air Now a wind starts blowing with speed 10 m s in north direction If a cyclist starts moving at...
- Q A 10 m long steel wire has mass of 5 g If wire is under a tension of 80 N the speed of transverse wave on the wire is O...
- Q A hollow copper tube of 10 m length has an external diameter of 20 cm and its walls are 10 mm thick Th specific resistance of copper is 1 7...
- Q Two dots are 1 mm apart on a screen They are seen by eye of pupil radius 1 5 mm The maximum distance at which these dots are just resolved...
- Q Three light bulbs having the ratings 40 W 200 V 50 W 200 V and 100 W 200 V are connected to a 60 supply in series What is the...
- Q 30 A solid cylinder of radius 10 cm and length 1m clamped from its one end is twisted through angle 0 4 rad by applying torque at other free end...
- Q 30 A boy runs on a circular track of radius R in km 27 C TR 2 and then R km h in anticlockwise sense for 1 h The magnitude...
- Q In the given figure AC is a current element of strength 0 4 A m placed at the centre of a circle of radius 10 cm Calculate magnetic field induction...
- Q When a projectile is fired at an angle 8 w r t horizontal with velocity u then its vertical component till body reaches its maximum height Remains same Goes on...
- Q 0 A particle is projected from the origin with velocity 41 91 m s The acceleration in the region is constant and 10 m s The magnitude of CWT Cor...
- Q 10 Figure shows graph between and V for two conductors A and B Their respective resistances are in the ratio A V Z JK V R 1 1 1 3...
- Q The absolute temperature of a gas is increased to 16 times of origina temperature The root mean square speed of its molecule becomes Twice O Four times O One fourth...
- Q A plane boundary separates two transparent media A and B The speed of light in medium A is 1 5 x 108 m s and in medium B is 2...
- Q 24 The instant at which a bulb is switched on its power is maximum then it decreases to a steady value Explain
- Q 20 A particle is thrown from ground with a speed 20 m s at an angle 60 above horizontal Average velocity over its entire journey just before hitting the ground...
- Q A ray of light which is initially horizontal passes through a glass cylinder of radius R as shown in the figure given below Taking refractive index of air nair 1...
- Q Which of the following is not a property of magnetic lines of force O The tangent at any point on the magnetic lines of force gives the direction of the...
- Q A thin uniform rod of length I and mass m is uniformly charged with a total charge q The rod is rotated about a point at a distance from 1...
- Q A charged particle of mass m and charge q enters a magnetic field region with velocity v perpendicul magnetic field B The change in kinetic energy of particle after it...
- Q small balls each of mass each of them on are swo light insulating Two q through length I expression of the m and char Static suspended string of for string...
- Q 140 A body of mass 2 kg is projected at a speed of 20 m s from a pillar of height 40 m at an angle of 30 with the...
- Q the capacitor at steady state is R 1 2 3 R CE 9 2CE 9 CE 3 network shown the energy stored in OCE R wwww C HHH E R...
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