Physics question and answers for July 14, 2024
- Q An elastic ring of mass m and force constant k stiffness is released from rest in a smooth cone of semi vertex angle 0 from horizontal position as shown in...
- Q site signs ar ts downward increased a P is din a An emf of 15 volt is app 5 henry inductance and 10 92 resistance The ratio of the current...
- Q luced A square loop enters a magnetic field with velocity v as shown in figure The front edge enters the magnetic field at time t 0 Which of the following...
- Q Gas Pressure variation with height An ideal gas of molar mass M is located in uniform gravitational field in whi the free fall acceleration is g Find gas pressure as...
- Q Calculate the moment of inertia of the shape about the indicated axis 5 00 30 00 15 00 17 50 17 50 5 00 1 y 2 10 00 3...
- Q Particle A of mass m 3 with another particle B at rest having mass m 20 m 2 2 C A 2 moving along the x axis with velocity v...
- Q 2 9 In copper each copper atom releases one electron If a current of 1 1 A is flowing in the copper wire of uniform cross sectional area of diameter...
- Q Ans given is 3rd but when I solved it by Nernst equation my ans is 0 29V Calculate EMF of the cell A A3 0 1M B2 0 01 M...
- Q Air in a sealed syringe is slowly compressed by moving the piston The temperature of the air stays the same D air syringe Which statement about the air is correct...
- Q The velocity vector of a particle moving in xy plane is given by v ti xj If initially the particle wa at origin then the equation of trajectory of th...
- Q A tuning fork A produces 4 beats s with another tuning fork B of frequency 320 Hz On filling one of the prongs of A 4 beats s are again...
- Q The figure shows a block of mass m placed on a smooth wedge of mass M Calculate the value of M and tension in the string so that the block...
- Q 0 A truck is stationary and has a bob suspended by a light string in a frame attached to the truck The truck suddenly moves to the right with an...
- Q 4 53 A closed curve encircles several conductors The line integral B di around this curve is 3 83 x 10 7T m a What is the net current in...
- Q RESPECTED SIR MAM FOR ME IT SEEMS TO BE SHORT CI RCUITED IN 4 CAPACITORS PLEASE EXPLAIN IT HOW TO C ONSIDER SHORTCIRCUIT IN CAPACITOR AND RESISTOR AL SO 25...
- Q lectricity charge on capacitor is t Zero Consider the circuit shown R is a variable resistance e is some unknown emf with polarity as shown Match the following B 202...
- Q 5 A telescope has an objective lens of focal length 150 cm and an eyepiece of focal length 5 cm If a 50 m tall tower at a distance of...
- Q In the given A C circuit the instantaneous current through inductor and capacitor are 0 8 A and 0 4 A respectively The instantaneous current through the resistor is 1...
- Q 2b A researcher is trying to use an old Q band microwave spectrometer to view at least one rotational energy transition for 79Br 9F g The rotational constant for this...
- Q Two thin lens have a combined power of 10 D in contact When separated by 20 cm their equivalent power is 6 25 D Find their individual powers in dioptres...
- Q Give an example of appliances at home that is connected using a series connection Draw the circuit in a series connection
- Q O APPARENT WEIGHT Because of upward force acting on a body immersed in a fluid either wholly or partially there occurs an apparent loss in weight of the body The...
- Q 2 5 Having gone through a plank of thickness h a bull changed its velocity vo Find the time of motion of the bullet the plank assuming the resistance force...
- Q from them Object e Mirror c Image ages Name of the mirror a b d f 3 2 Which mirror among the above can be used to form the image
- Q 2 A mountain climber is sliding down a vertical rope Her total mass including equipment is 65 kg By adjusting frictional force of the rope she controls the force that...
- Q Consider an apple of mass m and that falls off a tree A common model for its speed v t after t seconds that takes air resistance into account is...
- Q In the figure shown M 7 kg is placed on horizontal surface and m 2 kg is attached with a spring of k 700 N m which is initially in...
- Q This question has multiple correct options A B C D the total kinetic energy of the system is always conserved Correct Answer the kinetic energy of the system before collision...
- Q 99 A body of mass 1kg is moving in the upwar direction with an acceleration of 2m s Calculat the work done by tension in first second at t C...
- Q A T shaped rod is placed in xy plane as shown in the figure If the rod is uniform and both parts are of equal length L and mass m...
- Q twice the diameter twice the tension and twice the density of string B The overtone of A that will be in unison with fundamental frequency of Bis 1 4th 23rd...
- Q Examine the table Items A B C D E TI F Colour in acid No colour Light pink Black Yellow Red White Colour in alkali Pink Light yellow Black Red...
- Q An a particle of mass m suffers one dimensional elastic collision with a nucleus at rest of unknown mass It is scattered directly backwards losing 64 of its initial kinetic...
- Q In the vacuum tube experiment with perfora ted anode what will happen to the emitted e lectrons after hitting the phosphor material How the electrical neutrality is maintained Also in...
- Q Calculate the radius r of a circular spot of liquid after 25 seconds The droplet volume is 5 5 mL 3 The liquid has density 970 kg m and dynamic...
- Q A radar has a power of 1 kW and is operating at a frequency of 10 GHz It is located on a mountain top of height 500 m The maximum...
- Q 41 Two different sound sources Sand S have freqencies in the ratio 1 2 Source S is approaching towards observer and S receding from same observer Speeds of both S...
- Q The binding energy per nucleon of Li and He nuclei are 5 60meV and 7 06meV respectively In the nuclear reaction Li H He He Q the value of energy...
- Q A prism of a certain angle deviates the red and blue rays by 8 and 12 respectively Another prism of the same angle deviates the red and blue rays by...
- Q between their centripetal acceleration is 1 R r 2 r R 3 R 4 A particle covers equal distance around a circular 14 path in equal intervals of time Which...
- Q small distance d as shown The fringes obtained on the screen will be tous S S d B A points C D straight lines semi circles Screen
- Q 4 9 A charge of 1 coul is placed at one end of a non conducting rod of length 0 6m the rod is rotated in a vertical plane about...
- Q jective Questions rce A high speed car and an innocent insect have a head on collision The the poor insect over the windshield Is the corresponding force that the insect...
- Q A transverse wave is represented by the 2 equation y yo sin value of is the maximum particle velocity equal to two times the wave velocity Your Answer 2 A...
- Q Diffraction pattern is obtained using red light What will happen if it is replaced by violet light Bands will get spaced apart Bands will remain fixed at same place Intensity...
- Q 1 Centre of gravity C G of a body is the point at which the weight of the body acts 2 Centre of mass coincides with the centre of gravity...
- Q k Solvelancer Test Which is the correct statement for the following structures Solvelancer Test CH T CH CH CH CHO I H C CH CHO Butanal 2 Methyl butanal a...
- Q ying straight i A rod of erpendicular city v then field variable with time as B Bot induced in the ring if the magnetic field is perpendicular to plane of...
- Q A diverging lens of focal length 10 cm is placed 10 cm in front of a plane mirror as shown in the figure Light from a very far away source...
- Q You observe a star in another galaxy You compare its brightness with another star with the same pulsation period in your own galaxy with a known distance of d 1x10...
- Q 3 In the figure shown find work done by tension in string on 3 kg block in first two secon beginning of motion The system is set free at t...
- Q 20 A bob of mass m is suspended by a light string of 20 length L It is imparted a horizontal velocity v at the lowest point A such that...
- Q 4 81 A spring of free length 15 cm is connected to the two masses as shown in the figure 4 149 and compressed 5 cm The system is released...
- Q 12 A block of mass m is moving with a constant 12 acceleration a on a rough horizontal plane If the coefficient of friction between block and the ground is...
- Q 3 Zero 4 28 In the given figure there is current carrying straight wire of infinite length having current i A rod of length is coplanar with the wire and...
- Q to q at th on Example 1 6 Consider three charges 9 92 93 vertices of an equilateral triangle of side 1 What is the force charge Q with the...
- Q A stone is tied to a string of length and is whirled in a vertical circle with the other end of the string as the centre At a certain instant...
- Q An ideal monoatomic gas is enclosed in a vertical cylinde r An ideal monoatomic gas is enclosed in a vertical cylinder of area of cross section A and length I...
- Q Since direction of induced current is given in dia Therefor e magentic field produced according to the induced curre nt is vertically downward right hand thumb rule So the direction...
- Q 9 An air column in a tube 32 cm long closed at one end is in resonance with a tuning fork The air column in another tube open at both...
- Q 41 A block of mass 20 kg is acted upon by a force F 30 N at an angle 53 with the horizontal in downward direction as shown in diagram...
- Q 3 27 ms 4 36 ms 1 32 A ball is dropped from the top of a building The ball takes 0 5 sec to fall past the 3 m...
- Q 39 In the given diagram two particle A B having same charge mass respectively m m are moving in a magnetic field B with speed vand V then 1 MAY...
- Q 33 An object dropped from the top of a tower covers in the last second seven times the distance it covered in the first second Find the time of flight...
- Q In YDSE an electron beam is used to obtain interference pattern If the speed of the electron decreases then Distance between consecutive fringes decrease Distance between consecutive fringes increases Distance...
- Q D A car going at 22 metres per second passes a motorcycle at rest As it passes the motorcycle starts up accelerating at 3 2 metres per second squared If...
- Q A particle executing simple harmonic oscillation has an amplitude 14cm and time period 1 6sec Calculate the time taken by the particle to travel a distance 7 5cm away from...
- Q combination is in column II are arranged parallel to each other as shown in column I and the number Column II Column I 1 1 LETJ B wwwwwwwm 30 2a...
- Q Two billiard balls of same size and mass are in contact on a table A third billiard ball of same size a mass strikes them symmetrically and come to rest...
- Q 101 In the figure shown a small object is released from the position A on a smooth track When the object reaches at B then normal reaction on it by...
- Q A uniform disc of radius 20 cm is performing 20 pure rolling on a moving surface if it s angular velocity is 5 rad s then find velocity of it...
- Q 1 3 3 1 2 A cylindrical space of radius R is filled with a uniform magnetic induction B parallel to the axes of the cylinder If B changes at...
- Q A horizontal overhead powerline is at a height of 4m from the ground and carries a current of 100A from east to west The magnetic field directly below it on...
- Q 83 Magnetic field at the centre at nucleus of the hydrogen like atoms atomic number Z due to the motion of electron in nth orbit is proportional to 1 n...
- Q 18 A sonometer wire is emitting a note of frequency n when stretched by 1 point a weight If the weight is completely immersed in water then the frequency of...
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