Physics question and answers for July 14, 2024
- Q 32 4 1 g 2 g 2 3 g 3 4 g 4 If acceleration of the system is 2 m sec then 32 value of T is T T...
- Q 17 A sonometer wire of length 1 metre Vibrates in 4 loops The distance between two consecutive nodes is O a 10 cm Ob 25 cm O c 50 cm...
- Q 3 E m To keep the mass from accelerating a spring is attached What is the minimum spring constant of the spring to keep th block from sliding if it...
- Q When a piece of non metal and a metal are dropped from the same height near the surface of the earth the non metallic piece will reach the ground first...
- Q the work done by gravity when mass m is displaced slowly by a force F 0 60 from position A to position B 1 mgl 2 3 mal VG m...
- Q A compound microscope has a magnification of 30 when final image is formed at 25 cm from the eye piece What is magnification produced by the objective if the focal...
- Q A material has normal density p and bulk modulus K The increase in the density of the material when it is subjected to an external pressure P from all sides...
- Q 19 1 25 m 2 45 m A stone is dropped from the top of a tower If it travels 34 3 m in the last second before it reaches...
- Q the velocity of the sound wave Ans 120 96m sec The velocity of a particle executing simple harmonic oscillation is 1 4m sec and 0 8m sec when it is...
- Q 30 Equations of two progressive waves at a certain point in a medium are given by y a sin wt 1 and y2 asin wt 2 If amplitude and time...
- Q Assertion The specific charge for positive rays is a characteristic constant Reason The specific charge depends on charge and mass of positive ions present in positive rays 1 If both...
- Q In the given set up the parallel plate capacitor AB has vertical plates with plate separation 50 mm and capacitance C From the plate A a small conducting ball of...
- Q 5 Blocks A and B are initially in equilibrium The springs and strings are ideal The accelerations of the blocks A and B just after the spring 2 is cut...
- Q 16 Tension in the lower string is 20 N If natural length of spring is 10 cm then the length of the spring which is connected between 2 kg and...
- Q A source of frequency f gives 5 beats sec when sounded with a source of frequency 200 Hz The second harmonic of source of frequency f gives 10 beats sec...
- Q A non conducting ring having a uniformly distributed negative charge is placed in the plane of smooth paper A uniformly decreasing inward magnetic field is passing through the ring Then...
- Q 3 Resistances A and B are connected respectively in the left gap and right 1 point gap of a metre bridge If the balance point is located at 55 cm...
- Q 28 particle moves along x axis in positive direction Its acceleration a given as a cx d where x denotes the x coordinate of particle c and d are positive...
- Q The refractive indices of a thin prism for red violet and yellow lights are 1 52 1 62 and 1 59 respectively If mean deviation is 4 what is angular...
- Q The angle between two vectors given by 61 63 3k and 7i j 4k is B D C COS 4 cal Correct option is D sin We know angle between...
- Q Han 8 1 37 A detector is released from rest over a source of sound of frequency fo 10 Hz The frequency observed by the detector at time t is...
- Q The slits are 1 mm apart from each other and illuminated with a light of wavelength 5 x 10 7 m If the distance of screen from slits plane is...
- Q 0 The string of a sonometer is divided into two parts using wedge Total length of string is 1m and two parts differ by 2mm When sounded together they produce...
- Q 29 A conveyor belt moves to the right with speed v 300 m min A pieman puts pies on the belt at a rate of 20 per minute while walking...
- Q Light waves from two coherent sources of intensity ratio 81 1 produce interference What is the ratio of maximum and minimum intensity in interference pattern 56 25 16 36 25
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