Physics question and answers for July 21, 2024
- Q A particle of mass m connected to a string of length l which is rotating in a vertical circle such that the ratio of the maximum to the minimum tension...
- Q In the given figure the coefficient of friction between 4kg and 5 kg blocks is 0 2 and between 5 kg block and ground is 0 1 respectively Choose the...
- Q A block of mass m initially at rest is dropped from a height h on to a spring of force constant k The maximum compression in the spring is x...
- Q Figure shows a smooth curved track terminating in a smooth horizontal part A spring of spring constant 25 N m is attached of 5 m on the curved track Find...
- Q space between the plates of a parallel plate capacitor is filled with a dielectric whose dielectric constant varies with distance as per the relation K x K 2x a constant...
- Q marks A train starts from rest at t 0 along a straight track with a constant acceleration of 5 m s A passenger at rest in train observes a particle...
- Q apan ne 2 303 nRT log V2 V1 ye kyu nahi use kiya Iska sahi ans PV se aara h Ka Under isothermal condition a gas at 300 K expands...
- Q Marking scheme 4 for correct answer 0 if not attempted and 1 in all other cases 5 A hollow cylinder of radius 4R is rotating about fixed horizontal axis passing...
- Q A uniform rope of mass 2 kg and length 4 m connecting two blocks is placed on frictionless horizontal ground The block of mass 3 kg is pulled by a...
- Q Question 1 Single Select Type A battery of emf 16V and internal resistance 20is connected across a long uniform wire AB of length 1m and resistance per unit length 20m...
- Q 13 If a nucleus is emitting e particle its neutron to proton ratio will eff 1 increase 1 G n 2 decrease 2 Pr 3 remain unchanged THIG FE 4...
- Q In cosmic shower an electron is falling toward earth near equator In which direction will it be deflected 1 Eastward 2 Westward 3 Northward 4 Southward in maximum for
- Q A small conducting circular loop is placed inside a long solenoid carrying a current The plane of the loop contains the axis of the solenoid If the current in the...
- Q Ask an Expert What is the moment of inertia of a magnet in the topic of dipole in uniform magnetic field Where is the axis for the magnet in this...
- Q State whether the following statements are true T or false F Correct the false statements 1 A simple machine makes work easier by providing energy on its own T 2...
- Q 3 A system consists of two identical particles One particle is at rest and the other particle has an acceleratio a The centre of mass of the system has an...
- Q 2 18 The dielectric to be used in a parallel plate capacitor has a dielectric constant of 3 6 and a dielectric strength of 1 60 x 107V m The...
- Q The resistance of the wire in platinum resistance thermometer at ice point is 3 2 and at steam point is 9 Q2 When the thermometer is inserted in an unknown...
- Q Q14 A blue ball of mass 5kg is tied to a string of length 2m and swung in a loop with a velocity of 1 m s A red ball...
- Q A parallel plate capacitor is made of two plates of length width and separated by distance d A dielectric slab dielectric constant K that fits exactly between the plates is...
- Q Question given below has answer in Numerical Value You need to enter the Numeric Value using your keypad For CORRECT Value there is NO NEGATIVE marking No marks will be...
- Q If the magnetic field of earth at any point on the magnetic equator is 0 4 x 10 T then the value o magnetic field at the magnetic pole of...
- Q A particle of mass 2 kg travels along a straight line with velocity v a x where a is a constant The work done by net force during the displacement...
- Q 2 P and Q 3 P and Q 4 Q and Q Assume that each iron atom has a permanent magnetic moment equal to 4 Bohr magnetons 1 Bohr magneton...
- Q A cylinder of 0 9 m in volume contains air at 0 C and 39 24 N cm2 absolute pressure The air compressed to 0 45 m Find i the...
- Q option without selecting any incorrect option second option in this case will result in t marks A 1 kg block is kept on L shaped block of mass 2 kg...
- Q 9 At what depth from earth surface the acceleration due to gravity is changed by 5 geat at de fondai Teus 4 yaralu aku 5 Rafa Gr m 2 640...
- Q 28 The mean lives of a radioactive substances are 2000 years and 400 years for a and emission respectively What will be the time in years after which 5 6th...
- Q of mass 100 g is dropped from a height of 1 m It loses 10 of its energy every time when it bounces off the floor After 3 bounces it...
- Q A magnet is oscillating with time period T in a vertical plane If angle of dip at that place is 60 and the magnet is restricted to oscillate in horizontal...
- Q Consider the circuit in the a What current flows from the battery b What is the potential difference between points A and 50 0 2 A ww 20 0 22...
- Q Sir Ma am please explain just the last option how force is conservative here I had posted this as my query and exce pt for the required last option all...
- Q A body is moving in a low circu about a planet of mass M and ra The radius of the orbit can be taken itself Then the ratio of the...
- Q Inside the plates of a parallel plate capacitor of area A distance d a dielectric slab of dielectric constant K is inserted battery of emf V is connected to the...
- Q For a transparent medium relative permeability and permittivity u and e are 1 0 and 1 44 respectively The velocity of light in this medium would be NEET 2019 Odisha...
- Q Question given below has four answer options out of which ONE OR MORE is are correct For all CORRECT options selected you will be awarded 4 Marks ar each correct...
- Q Consider a circuit as shown in figure Then choose correct statement s 20 30 wwwww 50 10V 402 60 If 40 resistance is shorted resistance less wire connected in parallel...
- Q slipping C is the centre of disc and m 3kg k 10 N m The time period of small oscillations is L C sooooor 111 O 0 6 k 100000
- Q 1 If both Assertion Reason are true and the reason is the correct explanation of the assertion then mark 1 2 If both Assertion Reason are true but the reason...
- Q A train moving at uniform 90 km h is approaching a flag station whose platform is 500 m long Station master is standing a the centre of the platform Train...
- Q 30 Figure shows the velocity versus time 30 50 fanf graph for a block of mass 50 g sliding on a rough floor The average rate at which energy dissipates...
- Q A beam having photon of energy 480 k eV is incident on a foil of aluminum If the photon is scattered at 45 then calculate the energy of the recoil...
- Q In a space electric field is acting parallel to x axis wherever it is present Variation of electric potential v s position x as shown Choose the correct statement s...
- Q 20 g of ice at 20 C is dropped into a calorimeter containing 20 g water at 10 C The specific heat of water is twice that of ice The...
- Q Torque of Viscous Forces on a Disc Figure shows a disc D of diameter d connected to an axle placed on a fixed horizontal surface There exist a thin layer...
- Q In the circuit shown the potential energy stored in the 20 F capacitor is ImJ Find the total potential energy stored in the two unknown capacitors A 0 5 mJ...
- Q 90 Design a counter which counts from 0 to 15 using positive edge clock pulse Draw the sequential circuit using CIRCUIT VERSE tool How we can say that J K...
- Q The VC shown in the diagram has zero error in it as you can see It is given that 9 msd 10 vsd The observed reading of the length of...
- Q The possible value of magnetic susceptibility of a diamagnetic material can be 1 2 45 3 0 5 2 0 75 4 1 67 tion factor of tangent galvanomete
- Q The capacitors C and C3 in the circuit shown carry 5uC and 15 C charge respectively If the capacitors C and C store equal potential energy find the emf of...
- Q In a parallel plate capacitor the region between the plates is filled by a dielectric slab The capacitor is connected to a cell and the slab is taken out While...
- Q Each of the wo identical magnets when suspended alone makes 30 oscillation per minute at a place The number of oscillation per minute if they are fixed at right angles...
- Q A negative charge is coming towards the observer The direction of the magnetic field produced by it wil be as seen by observer feel GRI GI Y 1 Clockwise 3...
- Q 6 Radius of a circular loop placed in a perpendicular uniform magnetic field is increasing at a constant rate of ro ms If at any instant radius of the loop...
- Q 20 A particle moves along a circle of radius m with constant tangential acceleration If the velocity o T the particle is 80 m s at the end of the...
- Q 7 Amplitude of electric field in an electromagnetic wave of intensity 1 475 W m is nearly 1 49 67 N C 2 33 33 N C 3 66 66...
- Q Two blocks of mass 2 kg and 3kg having coefficient of static friction 0 3 and 0 4 respectively are joined by an ideal spring of constant 100 N m...
- Q After the switch shown in figure A is closed there is current i through resistance R Figure B indicates current variation curves a b c and d for four sets...
- Q Here a is the angle formed by the helical line of groove with the horizontal plane A component of the acceleration of the body is responsible for change in direction...
- Q 69 The triangular plate described in the last question has angle A 0 Now find its moment of inertia about an axis through A perpendicular to the plane of the...
- Q A ball falls vertically onto a floor with momentum p and then bounces repeatedly The coefficient of restitution is e The total momentum imparted by the ball to the floor...
- Q An elliptical smooth wire frame carries a bead of mass m and is moved along X axis in a vertical plane At equilibrium the co ordinates of the bead with...
- Q In Davisson and Germer experiment for waw nature of electron if voltage between filament an that of anode is increased by five percent th new wavelength corresponding to electron a...
- Q ns ol C Find dimensional formula of if where C capacity V Voltage V 3 M LT A 4 M L T A 1 M L T A 2 M...
- Q 3 Energy of atom 4 Speed Radius 25 Consider a hydrogen like atom in Bohr s model It is given that difference between n 1 th Bohr s radius and...
- Q 42 Consider the following two statements a Capacitances are called inertia of electrical circuits b Keeping only radius of cross section of solenoid constant if number of turns of a...
- Q 3 3 4 4 39 A light has amplitude A after passing through the polariser Angle between analyser and polariser being 60 Light transmitted by analyser has amplitude 1 A...
- Q Charges 3Q Q are fixed as shown in diagram Then which of the following graph correctly represent the variation of electric field intensity along the line joining the two charges...
- Q 5 Sound travels at a speed of 1450 ms through water A submarine detects object around it by sending sound waves and detecting echo reflected sound heard afte 4 seconds...
- Q 6 A uniformly charged dielectric sphere of radius R carries a charge Q distributed throughout its volume Find the potential difference between its surface and a point at a distance...
- Q Aakash Rank Booster Test Series for NEET 2020 43 The activity of a sample of a radioactive material is A at time t and A at time t t t...
- Q Find the time taken by block to reach bottom most point H 0 2 1 0 92 s 2 t t 2 3 2 9 8 2s a 9 8...
- Q R in a uniform magnetic field B a wire in shape of a semic rcle of radius r rotates about the diameter of the circle with angular velocity as shown...
- Q In YDSE d 1mm 6000 and D 1m The minimum distance between two points on screen having 75 intensity of the maximum intensity will be 1 0 50 mm 3...
- Q 38 Consider two circuits 7 hp XE L i A in which N identical bulbs are connected in series across a battery of emf E ii B in which N...
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