Recently Active Physics Questions

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A person of 75kg climbs staircase of 24 steps 15cm ea in 12s Find 1) The force required in N ...

INTEGER TYPE QUESTIONS: 1) If sound level at a point is increased by 30dB thrn pressure amplitude increases approximately by 4x times find x. 2) A satellite is revolving in circular orbit of radius 3 units with velocity 1 uni ...

if sound level at a place is increase by 30Db pressure bcums 4x times . find x ...

A solid wire shaped as a truncated cone is stretched by two forces applied parallel to the length in opposite directns and normal to plane ends.If Y is Young's modulus of wire's material, elongation of the wire is *Image* *Im ...

Consider a SMALL ANGLED PRISM placed between a point object O and a Concave Mirror (pole P) (OP<f). Then, why is it that the rays formed due to deviation by prism when traced back form an image in the plane of object or wh ...

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electric potential due to a dipole is cylindrical symmetric.Why? ...

Q1. A/R Stmnt 1: If two long parallel wires, hanging freely are connected to a battery in series, they come closer to each other Stmnt 2: Force of attraction acts between the two wires carrying current ...

1...force on a current carrying current conductor is given by F=(i∫dl )X B WHERE FOR A CONDUCTOR ∫dl REPRESENTS VECTOR SUM OF ALL LENGTH ELEMENTS FROM INITIAL [POINT TO FINAL POINT ...

In the potentiometer circuit shown the balance point (null point) is at "X" . State with reason where balance point will be shifted when a) resistance "R" is increased,keeping all other parameters constant b) resistance "S" i ...

1. *Image* Qd/αξA FIND THE VALUE OF ALPHA(α) 2. *Image* ...

A:though light of a single frequncy (monochromatic) is incident on a metal,the energies of emmited photo elctrons may be diff R:The energy of electrons emmited from inside metal surface is redistributed in collisons with othe ...

Following are equations of four waves : *Image* Which of the following statements is/are correct ? (A) On superposition of waves (i) and (iii), a travelling wave having amplitude a 2 will be formed (B) Superposition of waves ...

Two coherent point sources of light having wavelength λ are seperated by a distance d. A circle is drawn in space surrounding both the point sources as shown. The plane of circle contains both the point sources. The distance ...

*Image* A SPRING IS USED TO STOP A 60 KG PACKAGE WHICH IS SLIDING ON THE HORIZONTAL TABLE.THE SPRING HAS A STIFFNESS 20 KN/M.AND HELD BY CABLES SO THAT INITIALLY COMPRESSED BY 120mm.THE PACKAGE HAS A VELOCITY 2.5 M/SEC AND MA ...

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*Image* A SQUARE PACKAGE OF SIDE a AND MASS m MOVES DOWN A CONVEYOR BELT A WITH A CONSTANT VELOCITY V1. AT THE END OF THE CONVEYOR BELT,THE CORNER OF THE PACKAGE STRIKES A RIGID SUPPORT AT B.ASSUMING THE IMPACT IS PERFECTLY E ...

*Image* 1) In the figure shown, the heavy cylinder ( radius R ) resting on a smooth surface separates two liquids of densities 2p and 3p. The height 'h' for the equilibrium of cylinder must be A) 3 R/2 B) R 3/2 C) R√2 D) No ...

suppose that the electric field part of an electromagnetic wave in vacuum is: E vector={(3.1 N/C)cos[(1.8 rad/m)y+(5.4*106rad/s)t]}i a)what's the direction of propagation b)find wavelength and frequency of wave c)what's the a ...

There is an euiconvex glass lens with radius of each face as R and aμg = 3/2 and aμw = 4/3 . If there is water in object space and air in image space, then the focal length is: A) 2R B) R C) 3 R/2 D) R2 ...

MULTIPLE ANSWER QUESTION 1) A partition divides a container having insulated walls into two compartments 1 and 2 . The same gas fills the two compartments whose initial parameters are given. The partition is a conducting wall ...

Let there be a rod of length l(in a horizontal plane).End B is given a velocity 3m/s at an angle of 60 degrees in horizontal plane(+ve direction). What is he minimum velocity of end A? Ans.1.5 m/s Please provide an explanatio ...

*Image* 1. Key K is connected in turn to each of the contacts over short identical time intervals so that change in charge on capacitor is small. Final charge on cap is: 1)2.5 C 2)5 C 3)0.5 C 2. There is a dielectric rod b/w ...

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A mass m at the end of an ideal spring strecthes the spring to a length l when at rest. The mass is now set into motion so that it executes up and down vibrations while swinging back and forth as a single pendulum. It is obse ...

A large cylinder has an acoustic source at it's base....A small man is sitting at a corner of the cylinder and at time t=0 starts moving towards the source.... - he thereby detects a frequency f_0 ...Now the chamber is heated ...

1..a bucket of water is suspended from a spring balance .what is the increase in weight in the following cases;;;; (1)when piece of stone suspended from a string is immersed in the water without touching the bucket? (2)when p ...

*Image* correct ans are a,c,d. If i ignore the plate Y , the i m getting the answers. I want to know what is the effect of Y. ...

hey guys do u feel that one cant do new chaps now for jee //./.....i feel still some chaps can be done and even remembered???i feel so ...does someone else too? ...