Physics question and answers for June 23, 2024
- Q A block of mass m is placed on a plank of mass M and given velocity V Friction between plank and ground is zero The coefficient of friction between the...
- Q mple 9 A magnetic dipole of magnetic moment M is placed on the axis of a current carrying circular lo of radius R at a distance x from the centre...
- Q The pulleys and the strings are light and all surfaces are frictionless If accelerations of mass M and 2M are a and a respectively then 22 1 a 2a 3...
- Q 2022 NEET NURTURE PHASE I TO I INTERNAL TEST 06 23 09 2020 HAVE CONFIDENCE 100 SUCCESS YSICS A particle moves from 3 23 6k m to 141 13 9k...
- Q block of mass of 2 kg is at rest on rough surface Coefficient of friction between block surface is 0 4 A horizontal force F is applied on the block...
- Q For given figure ma is 30 kg mB mc 5 kg respectively All contact surfaces are smooth g 10 m s2 Select the correct statements B Tension in string is...
- Q act on a body in x direction find the work X done in displacing the body from x a to x 2a k is a positive constant If F 1...
- Q A boat is being steered across a river flowing at 4 m s The river has a width of 100 m In each of the cases shown in List I...
- Q QR P S T XW this equation is V dimentionally correct where all the letters represent physical quantities then choose the incorrect statement s none is dimensionless If
- Q In the circuit shown in figure the current measured by ammeter is 60V 1 2 1 A R 100 Question Type Single Correct Type 2 A V mmmm 50V 100V...
- Q K 48 The potential energy of a 1 kg particle free to move along x axis is given by U x 4 2 total mechanical energy of the particle is...
- Q Assuming human pupil to have a radius of 0 25cm and a comfortable viewing distance of 25cm the minimum separation between two objects that human eye can resolve at 500...
- Q 3 1 2 2 31 Dip circle is initially in magnetic meridian and then it is rotated by 30 If angle of dip in new meridian is 45 then angle...
- Q If one surface of a biconvex lens is silvered then it behave as 1 A concave mirror of focal length 2 A concave mirror of focal length 3 A convex...
- Q For an electromagnetic wave propagating through vacuum the amplitude of electric field vector is 30 V m The maximum value of magnetic field is Only one correct answer A 2...
- Q The rest energy of an electron is 0 511 MeV The electron is accelerated from rest to a velocity 0 5 c The change in its energy will be 1...
- Q But I have a doubt why can t it be option b If it isn t correct then please give an exampl e of a scalar which can take ve...
- Q A particle starts moving at t 0 in x y plane such that its coordinates in m relate with time in sec as x 2t and y 5 sin 2t...
- Q Displacement of a particle is given as x A e kt sin Bt C which of the following is are correct B k is dimensionless B k may be a...
- Q Question No 4 A block of mass 10 kg is at rest on rough inclined of inclination 37 with help of a constant force F Force F have magnitude 20...
- Q A quantum particle is in a state which is the superposition of the eigenstates of the momentum operator Px ih If the probability of finding the momentum k of the...
- Q What should be the maximum angle of acceptance at the air core interface of an optical fibre if n and n are the refractive indices of the core an the...
- Q For given figure ma is 30 kg mg mc 5 kg respectively All contact surfaces are smooth g 10 m s2 Select the correct statemen B A Acceleration of block...
- Q Five charges of equal magnitude placed at corners of a regular pentagon of side a The force on qo which is placed at centroid O is Q 1 S zero...
- Q Block A of mass 1 kg is kept on block B of mass 2 kg which is kept on smooth surface as shown in figure At t 0 both blocks...
- Q A source of emf V sin ot is connected in series with an inductor L capacitor C and resistor R Calculate the impedance and resonant frequency of the circuit Also...
- Q Two masses m 1kg and m 2 kg are connected by a light inextensible string and suspended by means of a weightless pulley as shown in the figure m 2kg...
- Q 7 A small air bubble is present exactly at the cent of a glass sphere Size of the image as seen fr outside is of 1 Same size 2 Bigger...
- Q A block of mass m is at rest w r t disc and disc is rotating with angular velocity w and having angular acceleration a then which of the following...
- Q 3 11200 N 4 9600 N A block is placed on the top of a smooth inclined plane of inclination kept on the floor of a lift When the lift...
- Q A particle of mass m and velocity collides oblique elastically with a stationary particle of mass m The angle between the velocity vectors of the two particles after the collision...
- Q Figure shows a bob moving in horizontal circular motion at angular speed 21 find value of N Strings are of equal lengths and inextensible T tension in supporting strings T...
- Q A particle in the ground state of an infinitely deep one dimensional pot a perturbation of the form TIX V V cos a where is a constant Find the shift...
- Q Two masses M and M are attached to the e of a string which passes over a pulley attached the top of an inclined plane The angle of inclination of...
- Q surfaces A small air bubble is at the centre of a glass sphere of radii 5 cm When it is viewed from outside what will be the position of image...
- Q go for NEET 46 A block slides down an inclined plane of inclination O with constant velocity It is then projected up the inclined plane with an initial speed u...
- Q ALLEN CAREER INSTITUTE HOTA CAMASTHAND TARGET PRE MEDI Three equal weights A B and C of mass 2kg are hanging on a string passing over a fixed pu which is...
- Q A string of negligible mass going over a clamped pulley of mass m supports a block of mass M as shown in the figure The force on the pulley by...
- Q Two identical bulbs are connected as shown in figure across a cell of emf E and internal resistance r The brightness of B when bulb B gets fused will T...
- Q A A horizontal overhead powerline is at height of 4 m from the ground and carries a current of 100 A from east to west The magnetic field directly below...
- Q 4 Change will depend upon velocity A body of mass 2 kg is hung on a Spring baland mounted vertically in a lift moves up with acceleration equal to the...
- Q 2 A current is flowing through a conductor which is in the shape of truncated cone If V and V be the drift speed at section 1 and section b...
- Q monkey is descending from the branch of ith a constant acceleration If the breaking rength of the branch is 75 of the weight onkey the minimum acceleration with whi onkey...
- Q A 50 kg boy stands on a platform spring scale in a lift that is going down with a constant speed 3 m s If the lift is brought to...
- Q 1 Sheila is trying to write an equation for the equivalent resistance for the following circuit She comes up 1 Rtotal R1 with the following equation Is she correct If...
- Q ALLEN ARGER INST TARGET PRE MEDICAL 2 A ball of mass 1 kg hangs in equilibrium from a two strings OA and OB as shown in figure What are the...
- Q WEET NURTURE PHASE I TO III INTERNAL TEST 05 02 09 2020 The pendulum hanging from the ceiling of a railway carriage makes an angle 30 with the vertical when...
- Q onsider an elevator moving downwards w celeration a the force exerted by a passe mass m on the floor of the elevator is ma 2 ma mg 3 mg ma...
- Q A conducting loop carrying a current I is placed in a uniform magnetic field as shown The loop will have a tendency to y Contract BO 1 2 Expand 3...
- Q Initially system is in equilibrium If the spring between A B is cut then just after cutting Assume all springs are massless and identical Acceleration of block A is 2g...
- Q A 3 6 m long 9 0 g string is fixed at both ends and tightened until the wave speed is 80 m s a What is the frequency of...
- Q A light string going over a clamped pulley m supports a block of mass M as shown in t The force on the pulley by the clamp is gi 1...
- Q SN 5 3 N 4 5 3 N SN mass is hanging on a spring balance which is ot in a lift at rest shows some reading If the lift...
- Q horizontally in a vertical plane by two light strings PA and QB as shown in the figure G is the centre of gravity of the rod If PA and QB...
- Q A 40 N block supported by two ropes One rope is horizontal and the other makes an angle of 30 with the ceiling The tension in the rope attached to...
- Q If resultant of two vectors A and B is perpendicular B If A 4 3 B 6 then 75 Angle between A and B is radian Magnitude of resultant is...
- Q with time as 0 X is unknown circuit element then the maximum reading of the voltmeter V is V 20sinwt and V 20 cos Options O 20 2 V O...
- Q A uniform rod of mass 12 kg and length 4 m is hung from two string of equal length from a ceiling as shown in fig Determine the tension T...
- Q An elevator and its load have a total mass of 800 kg If the elevator originally moving downward at 10 m s is brought to rest with constant deceleration in...
- Q As the atmospheric pressure decreases A The spring become more compressed B The spring become less compressed The spring will be elongated D There won t be any change in...
- Q If resultant of two vectors A and B is perpendicular to g If 4 3 B 6 then 0 7 Angle between A and B is radian Magnitude of resultant...
- Q A glass 2 cube of edge length 5 cm placed on horizontal surface has a point source of light S placed at centre of face What should be minimum area...
- Q A ball is projected along the principal axis with speed 10 2 m s at an angle of 45 with the principal axis of a concave mirror If the ball...
- Q 1 BALL BOUNCE A pingpong ball dropped from a height of 10 feet Each time it hits the ground it bounces to 80 of its previous height ft 8 0...
- Q An aeroplane flies round a square field PQRS of each side 1000 km Its speed along PQ is 400 km h along QR 500 km h along RS 600 km...
- Q INSTRUCTIONS For questions 22 through 27 please refer to the following circul R1 www 2 5kQ Vs 50V 60Hz C1 1 F Solve for the total current in the circuit...
- Q Two blocks A and B are separated by some distance and tied by a string as shown in the figure The force of friction in both the blocks at t...
- Q A rectangle is inscribed in the parabola y x 3 as shown with its base on the x axis L 3 A x 2 4F Write the area A of...
- Q are placed on top of each other on a horizontal table If the mass of each coin is 10 g and acceleration due to gravity is 10 ms 2 what...
- Q Two blocks of mass 2kg 3kg respectively are placed on rough inclined having inclination angle 0 37 as shown in the diagram N is the normal reaction between the two...
- Q Two force are acting on a particle as shown in the figure A third force is applied on the particle such that net force on the particle becomes along positive...
- Q A man drags a box with uniform speed across a 10 m rough floor The coefficient of friction of the floor is 0 5 If the man pulls the box...
- Q A body of mass 0 5 kg is placed on ground The coefficient of friction between the mass and the ground is us 0 2 A horizontal force F 2...
- Q The spectral emissive power Ex for a body at temperature T is plotted against the wavelength and area under the curve is found to be A At a different temperature...
- Q A 1 5 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in the positive direction of x axis is applied to the block...
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