Physics question and answers for September 10, 2024
- Q The cross sectional area of a horizontal along its length linearly as moved in the direction of flow The variation of pressure as we move along its length in the...
- Q An alpha nucleus of energy mv bombards a heavy 2 nuclear target of charge Ze Then the distance of closest approach for the alpha nucleus will be proportional to a...
- Q 55 If the cold junction of a thermo couple is kept at 0 C and the hot junction is kept at T C then the relation between neutral temperature T...
- Q Consider the following reaction HHHH Yer The atomic masses are given as m H 1 007825 u m H 2 014102 u m H 3 016049 u 4 0 linn...
- Q 116 Extreme position to half of the amplitude A particle undergoes simple harmonic motion having time period T Find the time taken to complete 3 8 oscillation T The displacement...
- Q A point mass oscillates along the x axis according to the law x x cos oot 4 If the acceleration of the particle is written as a A cos oot...
- Q Two objects A B of equal density and radius TA 1 mm and r 2 mm are moving in same medium then find the ratio of their terminal velocity VB...
- Q A bomb of mass 16kg at rest explodes into two pieces of masses 4 kg and 12 kg The velolcity of the 12 kg mass is 4ms The kinetic energy...
- Q If B B B and B are the magnetic fields due to currents 1 12 13 and 14 respectively then in Ampere s circuital law B di l Bis 1...
- Q A radiation of energy E falls normally on a perfectly reflecting surface The momentum transferred to the surface is C Velocity of light 1 3 2E C E 2 4...
- Q Initially spring is relaxed and m is released from rest When m come to rest for a moment string AB is cut at the same moment Find the acceleration of...
- Q EX A particle is dropped along the axis from a height f figure Find the maximum speed of image Sol VIM m VOM m gt where f f u f...
- Q The current I drawn from the 5 volt source will be 1002 ww I a 0 33 A c 0 67A 5 Q 1002 5 volt 2002 www 1002 b...
- Q the body is vely charged 4 Calculate the charge on a body if two billion electrons are added t 10 10 lomb
- Q The threshold frequency for a metallic surface corresponds to an energy of 6 2 eV and the stopping potential for a radiation incident on this surface is 5 V The...
- Q The maximum velocity of a particle executing simple harmonic motion with an amplitude 7 mm is 4 4 m s The period of oscillation is a 0 01s c 0...
- Q Amagnet is suspended horizontally in the earth s magnetic flux When it is displaced and then released it oscillates in a horizontal plane with a period T If a piece...
- Q D A particle of mass 100g is thrown vertically upwards with a speed of 5 m s The work done by the force of gravity during the time the particle...
- Q The ratio of the accelerations for a solid sphere mass m and radius R rolling down an incline of angle 0 without slipping and slipping down the incline without rolling...
- Q A source is moving across a circle given by the equation x y R with constant speed m s in clockwise sense A detector is stationary at the point 2R...
- Q Binding energy of deuterium is 2 23 Mev then its mass defect in a m u is 1 0 0024 3 0 0012 2 0 0012 4 0 0024
- Q block attached to an end of a vertical spring whose other end is fixed to the ceiling of a stationary lift stretches the spring by length equilibrium It s time...
- Q An aeroplane is travelling horizontally at a height of 2000 m from the ground The aeroplane when at a point P drops a bomb to hit a stationary target Q...
- Q 8 Calculate the maximum possible value of mass m of block Cupto which block A will remain stationary relative to B If the length of block B is equal to...
- Q 38 A cylindrical rod is used to conduct heat energy If it conducts Q cal sec then what energy will it conduct if its all linear dimensions are halved 1...
- Q For a man walking with speed 3 2 km h rain appears to fall vertically downward When he starts running with 5 2 km h rain appears to fa on...
- Q A man of mass 60 kg standing on a plateform executing S H M in the vertical plane Th displacement from the mean position varies a y 0 5 sin...
- Q L 4 and m of different Three blocks A B and C of mass m 2 densities and dimensions are placed over each other as shown in the figure The...
- Q When Th238 changes into Bi222 then the number 90 of emitted a and B particles are 2 4a 7B 4 4a 18 1 8a 7B 3 4a 4p men 5...
- Q 1 A rope is wound around a hollow cylinder of mass 3 kg and radius 40 cm What is the angular acceleration of the cylinder if the rope is pulled...
- Q Two particle of mass 4 kg 2kg are located as shown in figure then find out the position of centre of mass y 5m 4kg 37 0 0 2kg X
- Q The diagram shows a simple mercury barometer The mercury level is at a heighth when the atmospherich P pressure is 100000 Pa What is the pressure at P A 40000...
- Q D Dimensional formula of universal gravita constant 1 M L T r 2 M LT co pripra 26 Hal yarala 1 M L T 3 IM 1 1 1441146 961...
- Q 1 A water pump lifts water from a level 10 m below the ground Water is pumped at a rate of 30 kg minute with negligible velocity Calculate the minimum...
- Q An object 2 4 m in front of a lens forms a sharp image on a film 12 cm behind the lens A glass plate 1 cm thick of refractive...
- Q The value of earth magnetic field BH 0 3 gauss In this magnetic field a magnet is oscillating with 5 oscillation min To increase the oscillation of magnet upto 10...
- Q Two bulbs of volume V and 4V contain gas at pressures of Satm 1 atm and at temperatures of 300K and 400K respectively When these bulbs are joined by narrow...
- Q A group of six identical cells each of emf E and internal resistance r are joined in series to form a loop The terminal voltage across each cells OE O...
- Q In the given figure a mass Mis attached to a horizontal spring which is fixed on one side to a rigid support The spring constant of the spring is k...
- Q A smooth table is placed horizontally and a spring of unstreched length and force constant k has one end fixed to its centre To the other end of the spring...
- Q A transparent solid cylindrical rod has a refractive index of mid point of one end of the rod as shown in the figure front The incident angle 0 for which...
- Q A transparent cube contains a small air bubble Its apparent distance is 2 cm when seen through one face and 5 cm when seen through other face If the refractive...
- Q 9 Consider two concentric conducting spheres The outer sphere is hollow and initially has a charge 70 on it The inner sphere is solid and has a charge 20 on...
- Q 3 2 x 10 J 4 1 10 J In Poiseuilli s method of determination of coefficient of viscosity the physical quantity that requires greater accuracy in measurement is 1...
- Q Image formed on retina of eye is proportional to 1 size of object 2 area of object The phenomena of total internal reflectic size of object 3 size of image...
- Q Wedge A is fixed while wedge B slides down on a smooth surface The vessel C having a simple pendulum of length I can slide down vertically on a smooth...
- Q There is a uniform circular disc of radius R and a concentric disc of radius r where r R is cut off from it The distance of the new position...
- Q A coil is suspended in a uniform magnetic field with the plane of the coil parallel to the magnetic lines of force When a current is passed through the coil...
- Q 4 change depending upon the wave length 3 not change Diameter of human eye lens is 2 mm What will be the minimum distance between two points to resolve them...
- Q A viscous fluid is flowing through a cylindrical tube The velocity distribution of the fluid is best represented by the diagram 41612 particle 3412 1 2 Friction Tal de to...
- Q Two object P and Q of masses 2m and m are connected to two springs of spring constant 2k and k respectively Other ends of springs are connected to rigid...
- Q ate magnitude of the resultant of t forces having magnitude 100N a cting at an angle of 60 degrees 95 N 58 N CON 2 N
- Q your understanding of the vectors material covered in the course so far Use these quantities to demonstrate your learning of the topics listed below It will be up to you...
- Q m Question 7 Initially spring is relaxed and m is released from rest When come to rest for a just after cutting thread moment string AB is cut at the...
- Q R In a sphere of mass M and radius R a part of radius 2 of mass shifts x towards negative x direction then the value of x in terms...
- Q An aeroplane flying uniformly with a speed 400 km h 1 covers a distance of 50 km in easterly direction and then 70 km in northerly direction and finally reaches...
- Q estion 39 d the value of frictional resistance if the dy is in limiting equilibrium Refer owing figure ote Click on image to enlarge it 400 N 46 14 N...
- Q NEET PHYSICS All India Major Test Ser Q 129 A thin semicircular conducting ring PQR of Q 12 radius r is falling with its plane vertical in a horizontal magnetic...
- Q A wire elongates by mm when a load W is hanged from it If the wire goes over a pulley and two weights W each are hung at the two...
- Q estion 16 ort lost in friction is given by Actual effort Ideal effort Ideal effort Actual effort Actual effort Actual load Actual load Actual effort
- Q 2 Velocity 3 Frequency 1 Wavelength Prism of which material is used for study of infrared spectrum 1 rock salt 2 flint glass 3 crown glass Image formed on retina...
- Q BHOLE RAJWARDHAN SANJAY Question 11 From a solid cylinder 150mm in diameter and 220mm height a hole having 45mm radius and height is drilled 220mm coaxially Calculate the Y for...
- Q A steel wire of 1 m long and 1 mm cross section area is hang from rigid end When weight of 1 kg is hung from it change in length...
- Q Assertion Steel is more elastic than rubber Reason Under a given deforming force steel is deformed less than rubber 1 If both assertion and reason are true and the reason...
- Q The potential difference V and the current I flowing through an instrument in an ac circuit of frequency f are given by V 5 cos wt volts and I 2...
- Q mple wheel and axle diameters of wh axle are 500 mm and 100 m ctively If load of 400 N is lifted by t of 100 N calculate the efficiency...
- Q A light ray is incident perpendicularly to one face to a 90 prism and is totally internally reflected at the glass air interface If the angle of reflection is 45...
- Q Identify the type of force system shown in following figure Note Click on image to enlarge it F F3 F2 F4 Coplanar Concurrent force system Non Coplanar Concurrent force system
- Q the nature of surfaces in contact and on the area in contact does not depand depands O does not depand does not depand O depands does not depand depands depands...
- Q 19 The resultant of called as and resultant reaction Force Applied force frictional normal reaction frictional force 2 applied force the weight of the body reaction the weight of the...
- Q Question 16 The volume of a sphere having 100mm as its diameter is mm 3 523598 78 261799 39 130899 69
- Q 4 length 50 cm diameter 0 5 mm 3 length 300 cm diameter 3 mm Copper of fixed volume V is drawn into wire of length e When this wire...
- Q a A system consists of a uniformly charged sphere of radius R and a surrounding medium filled by a charge with the volume density P where a is a positive...
- Q Question 9 To apply Lami s theorem all the Three forces in the system must be coplanar collinear forces Non collinear non concurrent forces coplanar concurrent and non colinear forces...
- Q Calculate magnitude of the resultant tensile forces having of two magnitude 100N and 200N acting at an angle of 60 degrees 244 95 N 264 58 N
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