Physics question and answers for July 27, 2024
- Q n number of waves are produced on a string in 0 5 second Now the tension in a string is doubled Keeping radius constant The number of waves produced in...
- Q A ring and a disc of different masses are rotating with the same kinetic energy If we apply a retarding torquet on the ring it stops after making n revolutions...
- Q For a certain organ pipe three successive resonant frequencies are heard as 300 Hz 420 Hz and 540 Hz If the speed of sound in air is 360 m s...
- Q The real angle of dip if a compass needle is kept in a vertical plane at an angle of 30 to the magnetic meridian and in this plane needle makes...
- Q 44 Acceleration time graph for an obje motion is shown below a m s 4 8 2 4 10 2 t 10 s till t 18 s 3 t 18...
- Q O No 15 View In English Two sphores A and B have the same radi but the heat capacity of A is greater than that of B The surfaces of...
- Q 0 45 B 2 A long elastic cord obeying Hooke s law is stretched considerably due to its own weight In one such case a cord is held from one...
- Q The angular width of the central maxima of the diffraction pattern in a single slit of width a experiment with A as the wavelength of light is 1 2 3...
- Q c Velocity 2 In the network shown each resistance is equal to R The equivalent resistance between adjacent corners A and Dis a R b R c F 0 V...
- Q 45 Position time graph for four objects A D during their motion are shown in figures below In which case the object has constant negative acceleration throughout its motion A...
- Q What is the current through an ideal p n junction diode shown in figure below www 100 2 1 orrect Answer 3 Zero 10 mA 20 mA 50 mA 4...
- Q 11 The thermal stress developed in the rod by rigid supports as shown F Rigid Support Rod 1 Directly proportional to its length 2 Inversely proportional to its area of...
- Q a 6 31 A particle would take a time t to move down a straight tube from the surface of earth supposed to homogeneous sphere to its centre If gravity...
- Q A small magnetic dipole is kept at the origin in the x y plane A long wire L is located at z a in the x z plane with a...
- Q When a load of 10 N is hanged from a wire the elongation produced is x mm If the wire goes over a pulley and two weights 10 N each...
- Q A flask contains argon and chlorine in the ratio 2 1 by mass at a temperature of 27 C The ratio of molar mass of chlorine to argon is roughly...
- Q A particle moves on x axis according to the equation x xo sin wt the motion is simple harmonic 1 2 Correct Answer 4 our Answor 1 with amplitude xo...
- Q To increase the current sensitivity of moving coil galvanometer we should decrease number of turns in coil decrease area of cross section of the coil increase torsional constant of spiral...
- Q 40 Two coherent planeJight waves of equal amplitude makes a a small angle 1 with each other They fall almost normally on a screen If is the wavelength of light...
- Q Displace current is given by 1 dE dt 2 3 4 AHO HOEO dE dt Correct Answer 3 Status unattempted dE dt EOA A dE 140 0 dt
- Q A B and C are three rafts floating in a river such that they always form an equilateral triangle A swimmer whose swimming speed is constant swims from A to...
- Q 21 A telescope has an objective lens of focal length 150 cm and an eyepiece of focal length 5 cm If a 50 m tall tower at a distance of...
- Q 1 51 The electric field in a region is given E axi Here a is a constant of proper dimensions Find a The total flux passing through a cube bounded...
- Q For a series LCR circuit given below resonance frequency Then R 12 2 2 and operating angular frequency is half of is the L 6 000 the resonance frequency i...
- Q i In the given figure if each capacitor ha capacitance c then the equivalent capacitance between P and Q of the entire circuit is 1 3 2c 7 5c 2...
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