Physics question and answers for August 13, 2024
- Q from rest and 0 A particle of mass m is follows a parabolic path as shown Assuming that the displacement of the mass from the origin is small which graph...
- Q 2 10 A metallic ring was first submerged in water and weighed against a mass of 10 g When the ring was submerged in oil of sp gr 0 8...
- Q In the figure shown a small block of mass m 2 kg moves in fixed semicircular smooth track of radius R 2 m in vertical plane It is released from...
- Q is false Statement II is true To increase the current sensitivity of a moving coil galvanometer we should 1 decrease number of turns in coil 2 decrease area of cross...
- Q Initially spring is in its natural length and blocks A B are at rest Find maximum value of constant force that can be applied on B such that block A...
- Q A loop carrying a current i lying in the plane of the paper is in the field of a long straight wire with constant current i inward as shown in...
- Q What force parallel to a frictionless plane is necessary so that a 60 0 kg object will slide down the plane wi acceleration of 5 0 m s2 if the...
- Q from the wire Pick out the WRONG statement 1 The gain in the K E of the electron moving at right angles to the magnetic field is zero 2 When...
- Q 20 A particle of mass m is released follows a parabolic path as shown Assuming that the displacement of the mass from the origin is small which graph correctly depicts...
- Q A point object is placed at 30 cm from a convex glass lens n 2 of focal length 20 cm The fina image of object will be formed at infinity...
- Q The point group symmetrics of the three molecules shown in Figs 1 3 are respectivel temperature is linear with an intercept Tc H CI CI CI H H Fig 1...
- Q 9 PHYSICS The particle of mass 1 kg is acted upon by a force F F i F from t 0 to 1 4 sec Find the velocity of the...
- Q An empty plastic box of mass m is found to accelerate up at the rate of g 6 when placed deep inside water Hc much sand should be put inside...
- Q 4 Move towards ve x axis a current PQ is part of a very long wire carrying a current and passing close to the circular coil If the direction of...
- Q Two blocks of mass 4 kg and 2 kg are attached by an inextensible light string as shown in figure Both the blocks are pulled vertically upwards by a force...
- Q 1 A jet airplane travelling at the speed of 500 kmh ejects its products of combustion at the speed relative to the jet plane What is the speed of the...
- Q radius of circle in which the ring moves is 2 5 m The speed in m s of the ring is x Find x Take An ideal string ACB passes...
- Q An electron charge e mass m is revolving 1 around a fixed proton in circular path of radius r The magnetic field at the centre due to electron is 1...
- Q is taken across load resistance 6 ks if current In the given circuit Zener diode regulated voltage through 0 5 ks resistor is 4 mA then current in load resistor...
- Q In a cyclotron a charged particle 1 undergoes acceleration all the time 2 speeds up between the dees because of the magnetic field 3 speeds up in a dee 4...
- Q Q28 If a cylinder containing a gas at high pressure explodes the gas undergoes A Reversible adiabatic change and fall of temperature B C D Reversible adiabatic change and rise...
- Q A ferromagnetic material has a Curie temperature 100K Then a its susceptibility is doubled when it is cooled from 300K to 200K b all the atomic magnets in it get...
- Q here what wil mass unit 21 When 1 kg of ice at 0 C melts to water at 0 C the resulting change in its entropy taking latent heat of...
- Q Question No 1 A double slit interference experiment is carried out in air and the entire arrangement is dipped in water as a result the ratio of path differences for...
- Q Q 16 Why the diver stretches her arm and leg while touching the water a to increase her moment of inertia b d c to relax her body to decrease...
- Q Eight connected in the circuit as shown in figure The equivalent resistance between A and B is C A B C A 013 16 2 3 15 7 19 2...
- Q In the arrangement shown in figure the strings are light and inextensible The surface over which blocks placed is smooth Find a the acceleration of each block 14kg 2kg kg...
- Q Each atom of an iron bar 5cmx1cmx1cm has a magnetic moment 1 8x10 2A m What will be the magnetic moment of bar in the state of magnetic saturation in...
- Q In an interference of light derived from two sl apertures if at some point on the screen yellow light has a path difference of 32 2 then the fringe at...
- Q A uniform rod of mass m and length I is suspended through a light wire of length and torsional constant k as shown in figure The time periods of the...
- Q 2 The transition from the state n 3 to n 1 in a hydrogen like atom results in ultraviolet radiation Infrared radiation will be obtained in the transition from a...
- Q In a series LCR circuit when an alternating voltage of peak value 500 V angular frequency 100 rad s is applied the peak voltage drops across L C and R...
- Q Magnetic field at the centre of a circular loop area A is B The magnetic moment of the l is 1 3 BA Ho BAVA I TT 2 4 BAVA...
- Q The order of magnetic field for human nerve fibre is 1 10 2 2 10 0 3 10 12 4 10 5 16 day 11 1 10 2 2 10...
- Q 4 A resistor of 40 ohms is in series with two resistors A and B in parallel The resistance of A is 100 ohms The entire series parallel circuit is...
- Q 1 New Zealand is situated in southern hemisphere 44 and Russia is situated in Northern hemisphere The angle of dip at New Zealand and Russia are 8 and 8 respectively...
- Q c 99 m s d 86 m s The second s hand of a watch has length 6 cm Speed of end point and magnitude of difference of velocities at...
- Q Can you explain to me as to what is meant by the line tha the component of velocity along the direction of force i s changed This implies that if...
- Q Consider the motion of the tip of the minute hand of a clock In one hour B A The displacement is non zero C The average speed is zero D...
- Q A particle start from rest and then moves with uniform acceleration It covers x m in 1st second What is the distance travelled by it in x seconds from start...
- Q During an isothermal expansion a confined ideal gas does 150 J of work against its surroundings This implies that a 300 J of heat has been added to the gas...
- Q Oscillating metallic magnetic field directed perpendicular to the plane of oscillation a slows down b becomes faster c remains unaffected oscillates with changing frequency
- Q Two resistances R and R are made of different materials The temperature coefficient of the material of R is a and that of the material of R is B The...
- Q 25 R is connected to a wire bent in the form of a sine curve to form a closed loop as shown in the figure If the loop carries a...
- Q 33 A body projected vertically from the earth reaches a height equal to earth s radius before returning to the earth The power exerted by the gravitational force is greatest...
- Q r r A stone of mass of 16 kg is attached to a string 144 m long and is whirled in a horizontal circle The maximum tension the string can...
- Q A glass tube 80cm long and open at both ends is half immersed in mercury Then the top of the tube is close and it is taken out of the...
- Q s A body projected vertically from the earth reaches a height equal to earth s radius before returning to the earth The power exerted by the gravitational force is greatest...
- Q EXERCISE 13 2 Half life of a radioactive element is 40 minute What amount will remain undecayed after 4 hour 1 1 32 3 1 128 1 2 64 4...
- Q the switch is made closed the current induced in the circuit is X X 1 X 2 X X A D Bolv R X 3Bolv R 2Bolv X X X...
- Q A long solenoid has 50 turns per meter of its length If current of 5 A is passed through it then the magnetic field at the end of the solenoid...
- Q A man starts from point P and goes 20 m due East then 5 m due North then 35 m due West and finally 25 m due South His displacement...
- Q 10 An arbitrary vector can be expressed as a sum of three mutually perpendicular unit vectors each multiplied by scalar constant equal to 1 a same scalar constant b d...
- Q Q 3 a c A frizzy drink beverage bottle is kept on a balance and the cap is opened Will there be any change in the balance There will be...
- Q 3 SK 4 6k 44 In the arrangement shown all surfaces are frictionless The rod R is constrained to move vertically The vertica acceleration of R is a and the...
- Q A rectangular plate of mass M of dimensions a x b is hinged along one edge The plate is maintained in horizontal position by colliding a ball of mass m...
- Q 4 All of the above If a magnet of pole strength m is cut into four 2 parts such that length and width of each part is half that of...
- Q cup of coffee has a temperature of 80 C when it is poured and allowed to cool in a room with a temperature of 30 C After 1 minute the...
- Q straight lin 4 parabolic A long hollow tube is carrying an electric 3 urrent along its length distributed uniformly n its circumference The magnetic field 1 increases linearly from the...
- Q and variable temperature For an ideal gas the fractional change in its volume per degree rise in temperature at constant pressure is equal to T is absolute temperature of gas...
- Q 4 magnetic equator The magnetic field is now thought to arise due 41 to electrical currents produced by convective motion of metallic fluid consisting mostly of molten iron and nickel...
- Q 20 A body of mass m is attached to the lower end of a spring an whose upper end is fixed The spring has negligible mass supe When the mass...
- Q A long straight hollow conducting tube carrying a current along ve y axis as shown in the figure The line PQ is parallel to positive y axis The magnetic field...
- Q n tell on what thing it depends on And explain following q uestion s solution Thank you Have a great day ahead At 20 m from a line source the...
- Q 18 In a Young s double slit experiment the intensity at the central maximum is The intensity at a distance 3 4 from the central maximum is is fringe width...
- Q A uniform copper rod of length 50 cm and diameter 3 0 mm is kept on a frictionless horizontal surface at 20 C The coefficient of linear expansion of copper...
- Q When a thin transparent plate of thickness t and refractive index u is placed in the path of one of the two interfering waves of light then the path difference...
- Q 4 2 cm 1 2 m 9 Two walls of thickness d and d thermal conductivities K and K are in contact In the steady state if the temperatures at...
- Q A screen is placed 90 cm away from an object An image of the object is formed on the screen by the same convex lens placed at two different locations...
- Q Pre Medical Physics 43 Many of the diagrams given in figure s magnetic field lines thick lines in the fig Point out which one is are correct A B O...
- Q company will receive the maximum monthly income A projectile is launched from a point 40 feet above the ground The height at ground level h in feet after t seconds...
- Q If magnetic field is perpendicular then force will act on pa rticle then how will the kinetic energy be constant A charged particle enters in a magnetic field in a...
- Q A rectangular sheet of copper is 2 00 mm thick and has surface dimensions 8 0 cm x 24 cm If th long edges are joined to form a tube...
- Q A person of mass M is sitting on a swing of length L and swinging with an angular amplitude 0 If the person stands up when the swing passes through...
- Q 27 A 100 W sodium street lamp emits yellow light of wavelength 0 6 m If it converts 40 of electrical energy into light then the number of photons of...
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