Physics question and answers for August 12, 2024
- Q Example 6 To what potential we must charge an insulated sphere of radius 14 cm so that the surface charge density is equal to 1 Cm2 Solution Here r 14...
- Q size of earth starts from rest from h R above the earth s surface It reaches earth in time 2h 9 a t c t h 9 2h 3g b...
- Q TON S LAWS A body of mass 2 kg moving on a horizontal surface with an initial velocity of 4 m s comes to rest after 2 sec If one...
- Q A man weights 80 kg He stands on a weighing scale in the lift which is moving upwards with a uniform acceleration of 5 m s What would be the...
- Q Spherical shell A is made up of insulating material and carries electric charge uniformly distributed over its surface while Spherical shell B is made up of conducting material and carries...
- Q The truth table for the circuit s shown in figure is A B A 0 0 1 1 A 0 0 1 1 BY 01 1 0 0 0 1...
- Q 5 Find out the velocity of Block D m s E 8 m s 2 m s A BI C D m s A VD 22 m s upward direction...
- Q Choose the correct option for a semiconductor It has negative temperature coefficient of conductance For pure semiconductor at room temperature ne nh It works as insulator at 0 C All...
- Q Let the index of refraction for air be 1 00 and the index of refraction for the type of glass in this problem be 1 56 A light beam in...
- Q You have two vectors A and B They add up If the size of each vector is maintained the maximum possible size of the resulting vector is achieved if Select...
- Q hermal Properties of Matter Board Competitive Exams Coefficient of volume expansion of mercury is 0 18 x 10 PC If the density of mercury at 0 C is 13 6...
- Q e M In figure a lamp P is in series wi inductor L When the switch S is closed the brightness of the lamp rises relatively slowly to its full...
- Q Three blocks of masses 2 kg 3 kg and 5 kg are connected to each other with light strings and are then placed on a smooth frictionless surface 9 The...
- Q 15 What is the equivalent resistance of the arrangement of resistors shown here 10 Q www www 5 0 2 6 0 2 3 0 2 wwww 2 0 92...
- Q A charge q is kept just outside a cube o extension of digonal GA The magnitude c electric flux of face ABCD is q 1 8E0 E B F D...
- Q Two blocks each of mass M are resting on a frictionless inclined plane as shown in figure Then A the block A moves down the plane C both the blocks...
- Q A particle of mass 1 kg has been thrown with init speed 20 m s making an angle 60 with th horizontal ground The angular momentum of t particle about...
- Q 3 25 A solid sphere of radius R is gently placed on a rough horizontal ground with an initial angular speed wo and no linear speed the angular velocity and...
- Q 50 Four particles each of mass M move along a circle of radius R under the action of their mutual gravitational attraction The speed of each particle is a L...
- Q A glass sheet 1 40 m thick is suspended in air In reflected light there are gaps in the visible spectrum at 529 nm and 605 00 nm Calculate the...
- Q 6 A parallel plate air capacitor consists of two plates each of area 0 01m separated by a distance of 0 1 mm Vit is charged to a potential of...
- Q X X X X X X X X X X X RX X X X X X X X X X X X X X X X X X Vo...
- Q 3 273 C 4 273 K A hole is drilled in a copper sheet The diameter of hole is 4 24 cm at 27 0 C Diameter of the hole...
- Q B A light frictionless pulley is suspended with the help of a light spring One end P of a light inextensible thread that passes over the pulley is free and...
- Q A mass of 1 kg attached to the bottom of spring has a certain frequency of vibration The following mass kg has to be added to it in order to...
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