Physics question and answers for July 27, 2024
- Q 5 In the diagram A and B are two conductors on insulating stands Both A and B were initially uncharged A X Y B i a Conductor A is given...
- Q A bus is moving on a straight road toward North with a uniform speed of 50 km h If the speed remains unchanged after turning through 90 the increase in...
- Q A bob is circulating in horizontal plane whose radius is constant with the help of ideal str that it forms a conical pendulum Then choose the correct option s Answer...
- Q The speed of a boat is 5 km h in still wate It crosses a river of width 1 0 km along the shortest possible path in 15 min The...
- Q 5 An insulated cylinder covered by a weighted frictionless piston of 500 kg and an area of 100 cm contains air at 1 MPa and 300 C The piston is...
- Q Time period of a particle executing SHM is 8 sec At t 0 it is at the mean position The ratio of the distance covered by the particle in the...
- Q 4 X 1 English A Stretched wire of length 110 cm is divided into three segments whose frequencies are in ratio 1 2 3 Their length must be Question Type...
- Q Shown in the figure are the displacement time graph for two children going home from the school Which of the following statements about their relative motion is true after both...
- Q An electric dipole consisting of two opposite charge of 2 x 10 6 C each separated by a distance of 3 cm is placed in an electric field of 2...
- Q 6 Two particles of equal mass m go round a circle of radius R under the action of their mutual gravitational attraction The speed of each particle is 4Gm b...
- Q A small bulb is placed at the bottom of a tank containing water to a depth of 80 cm What is the area of the surface of water through which...
- Q SolveLancer Test Calculate the mutual inductance of a straight solenoid which has 100 turns per cm in primary and total 700 turns in the secondary The cross sectional area of...
- Q The potential difference between points A and B is A 2V 192 1 4V 192 Question Type Single Correct Type 2 V 3V 19 B 2 6 V
- Q Find the potential difference across the capacitor in volts R R R 10V R C R
- Q 1 A log of wood floats in water with of its volume above the surface What is the density of wood A 750 gm cc 750 kg m 250 gm...
- Q In Young s double slit experiment with slit separation 0 1 mm one observes a bright fringe at angle 1 40 rad by using the light of wavelength 2 When...
- Q The power dissipated in an AC circuit is zero if the circuit is Question Type Single Correct Type 1 Purely resistive 2 Purely inductive only 3 Either purely inductive or...
- Q On the superposition of two harmonic oscillations represented by X asin wt and X2 asin wt 4 a resulting oscillation with the same time period and same amplitude is obtained...
- Q A thin uniform ring of mass m and electric charge Q uniformly distributed rotates around an axis perpendicular to its plane and going through its center The angular momentum of...
- Q A particle of charge 1 C moving with velocity V 21 31 m s experiences a constant force F 121 81 N due to a constant magnetic field in z...
- Q One mole of an ideal gas requires 207 J heat to raise the temperature by 10 K when heated at constant pressure If the same gas is heated at constant...
- Q Q 8 A person sitting firmly over a rotating stool has his arms folded with two identical balls stretched his arms along with balls and then the work done by...
- Q 53 A cube of edge length 10 cm is just balanced at the interface of two liquids A and B as shown in figure If A and B has specific...
- Q A student holds a laser that emits light of wavelength 633 nm The beam passes though a pair of slits separated by 0 300 mm in a glass plate attached...
- Q There are four elements P Q R and S their configuration are also given Which element will have highest value of I P II Question Type Single Correct Type 1...
- Q In the given diagram with what force must the man pull the rope to hold the plank in position Weight of the man is 60 kg Neglect the weights of...
- Q The equation of a simple harmonic wave is given by y 3 sin 50 t x 2 where x and y are in metres and t is in seconds The...
- Q A rigid container has a hole in its wall When some air is filled in it at 27 C weight of air in it is 100 gm Now the temperature...
- Q When illuminated four equally spaced parallel slits act as multiple coherent sources each differing in phase from the adjacent one by an angle Use a phasor diagram to determine the...
- Q The electric fields from three coherent sources are described by E Eo sin wt Eo sin wt E2 Eo sin wt and E3 Eo sin wt 20 Let the resultant...
- Q Suppose the slit openings in a Young s double slit experi ment have different sizes so that the electric fields and intensities from each slit are different With E1 E01...
- Q Use phasors to find the resultant magnitude and phase angle of two fields represented by E 12 sin wt and E2 18 sin wt 60 Note that in this case...
- Q Five capacitors of 10 F capacity each are connected to a DC potential of 100 volts as shown in figure The equivalent capacitance between the points A and B will...
- Q 4 The phase difference between the two given waves is Y a sin ot 2 1 2 Y a cos ot 3 0 2 2 a X 2 x 4...
- Q The two speakers of a boom box are 35 0 cm apart A single oscillator makes the speakers vibrate in phase at a frequency of 2 00 kHz At what...
- Q A uniform wire of mass 3m and length 31 is bent into the shape of an equilateral triangle and suspended from a horizontal axis X X in a vertical plane...
- Q For toroid of mean radius 20 cm turns 240 and a current of 2A What is the value of magnetic field within toroid Question Type Single Correct Type 14 8...
- Q Two narrow parallel slits separated by 0 250 mm are illuminated by green light 546 1 nm The interfer ence pattern is observed on a screen 1 20 m away...
- Q J 2 5 1 XBX A conducting wire frame is placed in a magnetic field which is directed into the paper The magnetic field is increasing at a constant rate...
- Q The intensity on the screen at a certain point in a double slit interference pattern is 64 0 of the maximum value a What minimum phase difference in radians between...
- Q The ammeter reading in the following circuit will be 69 202 wwwwww 65 wwwww 692 Question Type Single Correct Type 1 1 8 A 2V 3 24 A
- Q Projection of a Particle in a Potential Field Potential energy of a particle of mass m k depends on distance y from line AB according to relation U y a...
- Q A current flowing through the inductor of inductance L has a shape indicated in Fig The highest value of current is lo What will be the maximum voltage drop across...
- Q In terms of light red light is emitted when an electron a hits into the photon and is absorbed b crosses the bandgap to a lower energy state and emits...
- Q Inside a uniformly charged infinitely long cylinder of radius R and volume charge density p there is a spherical cavity of radius R 2 A point P is located at...
- Q In a location where the speed of sound is 354 m s a 2000 Hz sound wave impinges on two slits 30 0 cm apart a At what angle is...
- Q Steel ruptures when a shear of 3 5 x 108 Nm 2 is applied The force needed to punch a 1 cm diameter hole in a steel sheet 0 3...
- Q A four stroke CI engine having a cylinder diameter of 39 cm and stroke of 28 cm has a mechanical efficiency of 80 Assume the frictional power to be 80...
- Q In a double slit arrangement of Figure 37 5 d 0 150 mm L 140 cm 643 nm and y A 1 80 cm a What is the path difference...
- Q A charged particle q of mass m is placed at a distance d from another charged particle 2q of mass 2m in a uniform magnetic field B as shown in...
- Q 18 A uniform cylindrical rod of length L cross section and Young s modulus Y is acted upon by the forces as shown in figure The elongation of the rod...
- Q resistor and a length all are A 2 volt battery a 15 potentiometer of 100 cm connected in series If the resistance of potentiometer wire is 5 0 then the...
- Q 1 The diagram shows a student standing midway between a bell tower and a steep mountainside bell tower and bell 000 990 m student 990 m steep mountainside The bell...
- Q 42 teur 1 r 1 Fort 201 Loter K 2 3 A uniform magnetic field of indu confined to a cyclindrical region of radius R The magnetic field is increasing...
- Q A solenoid having a core of 10 3 m in cross section half air u 1 and half iron 500 is 1m long the no of turns are 2000 What...
- Q 31 32 33 34 As shown in figure a convergent lens is placed inside a cell filled with liquid The lens has focal length 20 cm when in air and...
- Q In the circuit shown the switch S is closed at t 0 The capacitor is initially uncharged Then the current through the resistor R 802 at t 0 4 x...
- Q In the adjacent circuit the capacitor A of capacitance 3C and the capacitor B of capacitance C are initially charged by potential drops 4 and 8 respectively and connected through...
- Q 4 In an optics lesson a Physics student traces the paths of three rays of light near the boundary between medium A and air The student uses a protractor to...
- Q The modulation frequency of an AM radio station is 250 kHz which is 10 of the carrier wave If another AM station approaches you for license what broadcas frequency will...
- Q a series ac circuit the instantaneous voltage e t and current i t are given b 5 cos wt 3 sin wt 5 sin wt 7 amp Then circuit is...
- Q A mixture of 2 moles of helium gas atomic mass 4 amu and 1 mole of argon gas atomic mass 40 amu is kept at 300 K in a container...
- Q o Negative Marks 1 If wrong option is selected A vessel with open mouth contains air at 60 C When the vessel is heated upto temperature T one fourth of...
- Q XM Two circular coils X and Y have equal number of turns and carry equal currents in the same sence and subtend same solid angle at point O If the...
- Q Q No 13 While measuring the surface tension of a liquid by a capillary of non uniform bore its radius should be measured 1 at the lower end dipped in...
- Q An amplitude modulated signal is given by V t 10 1 0 3 cos 2 2 x 1041 sin 5 5 x 105t Here t is in seconds The sideband...
- Q A long wire carrying current I is bent into the shape as shown in the figure The net magnetic field intensity at the centre O is A 1 2 C...
- Q 3 Young s A uniform heavy rope of weight W sectional area A is hanging from rigid support It Young s modulus of material is Y then strain is W...
- Q m A given metal wire has length 1m linear density 0 6 and uniform cross sectional area 10 7 m is fixed at both ends The temperature of wire is...
- Q 3 Start rotating around earth in a circular orbit 4 Escape from gravitational field of earth Gravitational field intensity 33 A uniform sphere of mass M and radius R is...
- Q A glass sphere of refractive index 1 5 forms the real image of object O at point I as shown in the figure when kept in air of refractive index...
- Q Region I and II are separated by a spherical surface of radius 25 cm An object is kept in region I at a distance of 40 cm from the surface...
- Q For observing a cricket match binoculars are preferred to a terrestrial telescope because 1 the binoculars give the proper three dimensions 2 the binoculars have a shorter length 3 the...
- Q A square wire loop of side a with a uniformly distributed charge q rotates about its centroidal axis perpendicular to its plane with angular velocity w The magnetic moment of...
- Q In the circuit shown the switch S is closed at t 0 Then the current through the battery after steady state reached is A 2A B 4A C 6A D...
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