Physics question and answers for July 30, 2024
- Q While taking records of car sales in the showroom a salesman mistakenly calculated the number of cars as 530 cars The actual number of cars is 604 cars From this...
- Q 111 A In a B decay in a nucleus a daughter nucleus that has discrete energy states is produced The daughter nucleus reaches ground state from excited state by emitting...
- Q The energy of the four non interacting identical fermions and bosons in one dimensional box of size a is Answer b c d D Sh 4h ma 2ma Sh 2h...
- Q 34 Two steam engine A and B have their sources respectively at 700 K and 650 K and their sinks at 350 K and 300 K Then A A is...
- Q A stone is thrown with a velocity of 20 ms at an angle 60 with the horizontal The speed of the stone when its direction of motion makes 45 with...
- Q 46 Mass of proton 1 67 MG0275 A circular coil placed in a uniform magnetic field If alternating current flows through this coil then 1 net force will act on...
- Q 33 Electric charges are distributed in a small volume The flux of the electric field through a spherical surface of radius 10 cm surround ing the total charge is 25...
- Q When capillary is dipped into liquid the levels of liquid inside and outside are equal The angle of contact is R RR A Zero B 90 C 45 D 60...
- Q 5 Two identical containers joined by a small pipe initially contain the same gas at pressure po and absolute temperature To One container is now maintained at the same temperature...
- Q 105 The temperature of a steel rod placed between rigid supports and of length L area of cross section A Young s Modulus Y and coefficient of linear expansion a...
- Q A The coil of moving coil galvanometer is wounded on a metallic frame R Metallic frame provides larger moment of inertia hence smooth oscillations are possible
- Q 4 A particle which is constrained to move along the x axis is subjected to a force in the same direction which varies with the distance x of the particle...
- Q This section contains 7 multiple choice questions Each question has 4 choices A B C and D for its answer out of which ONE OR MORE is are correct Three...
- Q 4 80 m 39 The position time graph for a body moving along a straight line between O and A is shown in figure During its motion between O and...
- Q 1 52 The electric field in a region is given by Ex 1 i Find the charge contained inside a cubical volume bounded by the surfaces x 0 x a...
- Q A and B are two concentric metallic hollow spheres If A is given a charge q while B is earthed as shown in figure then B A x 1 charge...
- Q When I am in lift if I consider physics then I am not rest according to the outside but I see all rest inside the lift and outside all are...
- Q 1 Choose the most suitable answer and fill in the blanks 1 The village town or city you live in is a a neighbourhood b community c rural area 2...
- Q 5 If R is the radius of the earth and g the acceleration due to gravity on the earth s surface the mean density of the earth is A 4...
- Q A particle is thrown vertically up with velocity 10 m s from a point P which is 10 m above the ground Time after which particle reaches the ground g...
- Q 116 The magnetic flux linked with a coil varies with time as 31 41 9 webers The induced emf at 1 2 sec is as in pobo do Dar rod...
- Q 114 An electromagnetic wave is travelling in a medium of permeability and permittivity e If e is speed of the wave in free space then the refractive index of the...
- Q 110 pn junction diodes are arranged as shown in the figures A and B Identify the bias applied to the diodes mA A 1 Both A and B show forward...
- Q Five identical polaroids are placed coaxially with 45 angular separation from adjacent one as shown in figure lo Intensity of unpolarised light The intensity of light emerging out of 5th...
- Q Option No Option Orientation Vertical A piece of metal weighs 34 g in air When it is immersed in a liquid of specific gravity 1 24 at 27 C it...
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