Physics question and answers for September 22, 2024
- Q Michael Jackson is pulling an object 6 0 m on a ground by using a string that is inclined with the horizontal The string sustains a tensile force of 42...
- Q depicts two circular motions The radius ligure given below of the circle the period of revolution the initial position and the sense of revolution are indicated in the figures Obtain...
- Q and all respe allg 1 alg 5 3 alg all The diameter of aperture of a plano convex lens is 6 cm and its maximum thickness is 3 mm If...
- Q A mixture of gases contains 3 moles of oxygen and 2 moles of hydrogen at NTP The partial pressure of oxygen in the mixture will be 0 1 atm 1...
- Q 23 A body of length 1 m having cross sectional area 0 75 m has heat flow through it at the rate of 6000 J s The difference between two...
- Q A 300 m c 500 m C a 400 m B 23 Two bikers simultaneously start a race with constant speeds from point A to traverse a triangular track ABC...
- Q 5 A simple pendulum is constructed by attaching a bob of mass m to a string of length L fixed at its upper end The bob oscillates in a vertical...
- Q Take g 10 m s a 0 b 30 d 90 A fully charged capacitor C with initial charge o is connected to a coil of self inductance L at...
- Q 111 A series LCR circuit has resonant tangular frequency oo and a large quality factor Q The approximate form for its impedance at high ble frequencies in terms of R...
- Q Two long current carrying thin wires both with current I are held by insulating threads of length L and are in equilibrium as shown in the figure with threads making...
- Q There are two wire of same material and same length while the diameter of second wire is two times the diameter of first wire then the ratio of extension produced...
- Q The closed cylinder shown in figure has a freely moving piston separating chambers 1 and 2 Chamber 1 contains 25 mg of N gas and chamber 2 contains 40 mg...
- Q This section contains 35 SINGLE CORRECT TYPE questions Each question has 4 Read More The following bodies have same mass and radius The body with less moment of inertia about...
- Q A thin circular ring of mass M and radius R is rotating in a horizontal plane about an axis vertical to its plane with a constant angular velocity o If...
- Q parallel currents are directed so that one is out of the page and the other is into the page Compare the magnitude of the magnetic field B at any arbitrary...
- Q a If the A Magnitude C Magnitude as well as direction D Neither magnitude nor direction Given C A B Also the magnitude of A B and Care 12 5...
- Q with angle of inclination 8 Various values of 0 are given in Column I The coefficient of friction between the 1 kg another mass m 2 kg are placed together...
- Q Test 1 Online 13 It is observed that as one moves along positive x axis the electrostatic potential reduces One may conclude that the direction of electric field 1 Must...
- Q 27 In the following circuit the current through the resistor R 2 2 is amperes The value of Iis JEE Adv 2015 Pap R 292 www 6 5 VT 6...
- Q A rod is free to rotate in horizontal plane about one of its end hinged at point O as shown in figure Point P Q are fixed points located in...
- Q Two beads of mass m are initially at rest at the top of a frictionless hoop of mass M and radius R which stands vertically on the ground The beads...
- Q A parallel plate capacitor has a charge magnitude of 80 nC on either plate a plate separation of 0 50 mm and a uniform electric field of magnitude 3000 volts...
- Q 20 N 1 0 kg Figure 5 ES 5 Consider the situation shown in figure 5 E9 All the surfaces are frictionless and the string and the pulley are light...
- Q 2 Let C be the capacitance of a capacitor discharging through a resistor R Suppose t is the time taken for the energy stored in the capacitor to reduce to...
- Q Two discs of same moment of inertia rotating about their regular axis passing through centre and perpendicular to the plane of disc with angular velocities 01 and 02 They are...
- Q Kepler s second law regarding constancy of areal velocity of a planet is a consequence of the law of conservation of 2019 a Energy b Angular momentum c Linear momentum...
- Q A nucleus of mass number 220 initially at rest emits an a particle If the Q value of the reaction is 5 5 MeV the energy of the emitted a...
- Q Two block are connected by a string and A is pulled by a force F 50N If coefficient of friction between the blocks and the ground is 0 2 friction...
- Q is the actual inclination of the rod Ans 376 11 A convex mirror of radius of curvature 0 48 m is placed with its axis vertical at the bottom of...
- Q A current loop in a magnetic field 1 can be in equilibrium in one orientation can be in equilibrium in two orientations both the equilibrium states are unstable 3 can...
- Q 110 N A 43 m long rope of mass 5 kg joins two rock climbers One climber strikes the rope and the second feels the pulse effect 1 4 second...
- Q A mass of 2 9 kg is suspended from a string of length 50cm and is rest Another body of mass 100g which is moving horizontally with a velocity of...
- Q 58 Two optical media of refractive indices and contain x and y number of waves in the same thickness Their relative refractive index equal to 1 xy 3 X y...
- Q 1 10 20 10 the position of the other balls in metre height will be 2 15 20 15 3 5 51 20 4 5 10 20 A ball is...
- Q 59 Which of the following is not thermodynamical function a Enthalpy c Gibb s energy b Work done d Internal energy 1993
- Q Center of Mass 21 A sphere of mass m 2kg collides with a sphere of mass m 3kg which is at rest Mass m will move at right angle to...
- Q 49 Which of the following produces a virtual image 1 lens camera 2 cinema projector 3 simple microscope 4 slide projector
- Q 2 If a particle moves along a straight line whose equation is y mx then what will be its angular momen about the origin Explain your answer which are meshed...
- Q Answer the following questions acceleration 1 Define 2 When is the acceleration of a body negative
- Q The loss of kinetic energy The loss of kinetic energ due to the first impact mv 1 m ev mv 1 e m 2gh 1 e mgh 1 e
- Q ration 14 In a ballistics demonstration a police officer fires a bullet of mass 50 0 g with a speed of 200 m s on soft plywood of thickness 2...
- Q 8 A body is dropped from a certain height h h is very large and second body is thrown downward with velocity of 5 m s simultaneously What will be...
- Q 30 The switch S shown in figure 32 E35 is kept closed for a long time and is then opened at t 0 Find the current in the middle 10...
- Q 7 A particle is moving along a vertical circle of radius R The velocity of particle at P will be assume critical condition at C 1 3 7 59R 3gR...
- Q 24 On a straight section of a highway sensors are installed to measure traffic density For each lane of the highway a sensor runs on an overhead wire On a...
- Q Calculate the life time of a soap bubble of radius R connected with the atmosphere through a capillary of length 1 and radius r The surface tension is S and...
- Q 18 A horizontal disc of mass 1 0 kg mounted on a fixed vertical axle through its centre can rotate without friction On the disc a semicircular groove OP is...
- Q A car is moving at a constant speed of 40 km h along a straight road which heads towards a large vertical wall and makes a sharp 90 turn by...
- Q Two blocks A and B of same mass m attached with a light spring are suspended by a string as shown in figure Find the acceleration of block A and...
- Q A ray of light enters a spherical liquid drop refractive index 3 from air at an angle of incidence 0 0 it suffers two internal reflections not TIR inside the...
- Q In the figure the equivalent capacitance between A and B is AO 10 F 10 F HI 16 5 F 1 3 75 F 7 F 3 F 11 6...
- Q 35 A body is moving along a straight line starting from rest with constant power The diagram which correctly represent displacement time s t curve of its motion is S...
- Q 9 A cable that can support a load W is cut into two equal parts The maximum load that can be supported by either part is W a 4 c...
- Q Two identical metal plates are given positive charges and 92 9 respectively If they are now brought close together to form a parallel plate capacitor with capacitance C the potential...
- Q A projectile can have the same range R for two angles of projection If t and to be the times of flights in the two cases then the product of...
- Q P is a point moving with constant speed 10 m s such that its velocity vector always maintains an angle 60 with line OP as shown in figure O is...
- Q A tuning fork vibrating with a frequency of 512 Hz is kept close to the open end of a with water as shown in the figure The water level in...
- Q A particle moving with uniform retardation covers distances 18m 14m and 10m in successive seconds It comes to rest after travelling a further distance of 1 50 m 2x8m 3...
- Q Vapour is injected at a uniform rate in a closed vessel Wi was initially evacuated The pressure in the vessel UPSEAT 2001 a Increases continuously b Decreases continuously c First...
- Q The magnetic induction in air at a distance d from an isolated point pole of strength m unit will be m a b d c m d md d 3...
- Q Current Electricity 12 27 V Find the equivalent resistance between A and B Each resisto has same resistance R b 8 a R 5 c R 5 6 R 5...
- Q 17 You are given many resistances capac inductors These are connected to a variable DC voltage source the first two circuits or an AC voltage source of 50 Hz frequency...
- Q 30 An object is dropped from rest Its velocity versus displacement graph is assume downward direction to be positive L 2 1 2 3 4 S S S
- Q discs of mass in and 4m having radii of a and 2a respectively are rigidly fixed by a massless rigid rod of length 1 24a through their centres This assembly...
- Q Target IIT 2 A nonconducting disc having uniform positive charge Q is rotating about its axis with uniform angular velocity oo The magnetic field at the centre of the disc...
- Q Two large conducting sheets are kept parallel to each other as shown In equilibrium the charge density on facing surfaces is d and o Which of the following may not...
- Q 7 In the given circuit the potential difference across resistance is 80 V and power consumed by it is 160 W If AC frequency is 50 Hz find the value...
- Q 13 In the figure shown the image of a real object O is formed at point I AB is the principal axis of the mirror the mirror must be A...
- Q A small block of mass m held compressed against a spring as shown in the figure The spring has force constant of k such that mg k 3m After releasing...
- Q 1 K K t ngure 31 12 Figure 31 E30 plates of the capacitor have plate area A and are clamped in the laboratory The dielectric slab is released from...
- Q extreme position and lowest position are equal The angle 9 of thread deflection in the extreme position will be 1 tan 2 2 tan 2 3 tan 1 2 4...
- Q by a 10 Figure 6 W15 shows triang string placed on the two inclined parts of a structure The coefficients of static and kinetic fri are 0 28 and 0...
- Q Point charges 4q q and 4q are kept on the X axis at points x 0 x a and x 2a respectively Then 1988 a b c d only q...
- Q is A zero current loop of radius a is placed in a radial field B as shown The net force acting on the loop B 2 Balcos0 1 a 0...
- Q 33 A force F i 47 acts on block shown The force of friction acting on the block is y a i c 2 4i X 1 kg 0 3...
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