Recently Active General Physics Questions

In the circuit show all the ammeters are ideal. 1) If the switch s is open find the current through all the ammeters and the pd accross the switch. 2)If the switch is closed find the current through all the ammeters . *Image* ...

A bird sitting in a wire cage which is hanging from a spring balance.if bird starts flying inside the cage,reading of spring balance will remain unchanged/be less/more than earlier? ...

If a lens is immersed in a liquid( of different Refractive Index) the focal length wud change TRUE / FALSE ...

please somone explain what is 'Cariolis force'???? ...

A block of mass m is lowered from natural length position of spring slowly by an external agent to equillibrium position .The extension present in the mass less spring was asked from 2 students Student A : 1/2 kx2 = mgx => ...

a point mass m starts from rest and slides down the surface of a frictionlesssolid sphere of radius r as shown in fig.(a)measur angles from the vertical and P.E.from the top(b)change in P.E.of the mass with the angle(c)K.E. a ...

the particle m in the fig is moving in a vertical circle of radius R inside a track.There is no friction.When mis at its lowest position,its speed is vo.(a)what minimum value vmof vofor wich m will go completely around the ci ...

*Image* Both A (suspended by a fixed rod) & B are of seme dimensions & same material If both are heated to the same temperature (A) A requires more heat (B) B requires more heat (C) Both require same heat (D) Can't say from t ...

The earth's gravity provides the centripetal force on a orbiting satellite to keep it moving in circle at constant speed . Which statements best explains why the speed of the satellite does not change even though there is a n ...

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(A) Graph of vel vs displacement in SHM (B) Graph of KE with height (during ascent) of a projectile ...

A body is in pure rolling on a fixed horizontal surface . Choose the incorrect statements (A)its point of contact slips with respect to the surface (B)its point of contact has 0 accn (C)its com always moves along a st line (D ...

How can we superimpose two or more SHM"s? Explain with the help of a diagram? ...

[ These qs r too easy I agree but there r some crunches in the ans given So i din't dare to take risk] Which of the following functions of A & B is possibility correct if A & B possess diff dimensions? (A) A/eA/B (B) B/log(A/ ...

MULTIPLE ANS QS Select the incorrect statement(s) : (A)Tom pushes Jerry with a force of 100N If Jerry accelerates , the force exerted by Jerry on Tom will be less than 100 N (B)Newton's first law can be derived from 2nd law ( ...

in a given system of units 1 unit of mass = 2Kg , i unit of length = 5 m & i unit of time = 5 sec Then , in this new system , 2 N =? ...

IF THERE R N PTS ON A CIRCLE THEN HOW MANY TRIANGLES R FORMED INCLUDING THE SMALLER TRIANGLES. ...

i wonder y i never asked it before.....its my age old doubt.......but now i am going to prove sumthing......... WHAT??? that neone who says that any vector has zero magnitude component in a direction perpendicular to it is ho ...

1.A water tank filled with water stands on a horizontal table top.The level of water is at a height H from the bottom of the tank.The tank together with the water weighs W.The side of the water tank has at the bottom a plugge ...

A piece of straight conducting wire 1m long is held horizontally at a height pointing east to west.Then the wire is let fall freely.Find the difference of potential between the ends of the wire after 1 second.Horizontal compo ...

I am facing problem as to when and where to conserve Linear momentum of a system and where to conserve the angular momentum of a system. can the linear momentum be conserved when angular momentum is already conserved? ...

1) In LCR circuit , if (1/LC)<(R^2/4L^2) , the circuit would be : a) oscillatory b) dead beat c) critically damped d) none of these 2) A circuit has an inductance 10 mH, capacitance 0.1 \mu F and resistance 1 K \Omega s. I ...

A gas bubble from an explosion under water oscillates with a period T proportional to PadbEc ,where P is the static pressure,d is the density of water and E is the total energy of the explosion.Find values of a,b and c. ...

A student performs an experiment to determine they Young's modulus of a wire,exactly 2m long,by Searle's method.In a particular reading,the student measures the extension in the length of the wire to be 0.8 mm with an uncerta ...

1)a uniform circular loop is rotating clockwise in absence of gravity with tangential speed v0.if v be velocity of transverse waves travelling on the strin then v>v0/v<v0/v+v0?(wat is the meaning of the question?) 2) ...

Is the momentum of a closed system of particles remains constant in an inertial reference frame or not ????? Is the momentum conservation law holds only in inertial frames ?????? Well there is a reason for posting such a simp ...

A body is floating in a vessel filled with liquid.now the vessel is heated.the buoyant force on the body incr/decr/remains same?? ...

*Image* Plz explain how to do this ...

If the error in measuring momentum is +100%,then the error in measurement of kinetic energy is : a>400% b>300% c>100% d>200% ...

does the coefficient of thermal expansion of metals depend on the electronic configuration of the metals? ...