Physics question and answers for July 19, 2024
- Q 70 In the circuit shown below to have same pote points a and b a dielectric of constant K 2 should be completely filled in C 1 F a HH...
- Q 13 0 The moment of inertia of a uniform semicircular wire of mass m and radius r about an axis passing through its centre of mass and perpendicular to its...
- Q The work done required to put the four charges together at the corners of a square of side a as shown in the figure is 1 q 4 a 2...
- Q The circuit consists of a capacitor connected in parallel to a resistor R with a coil of inductance L in series with them The power source could be an AC...
- Q 15 14 Two capacitors G and C C C are connected in series and joined to a battery as shown in the figure C The plot which shows correct variation...
- Q Which of the following is always true for an ideal gas that goes through an isothermal process No work is done on or by the gas The internal energy of...
- Q An object starts from rest from point P and comes to rest at point Q on same straight line It moves the first part of the distance with an acceleration...
- Q When light of wavelength is incident on a metal surface stopping potential is found to be x When light of wavelength n is incident on the same metal surface stopping...
- Q In a characteristic X ray spectra of some atom superimposed on continuous X ray spectra Relative intensity 1 P represents Ka line 2 Q represents KB line 3 Q and...
- Q 80 railway wagons all of same mass 5 x 10 kg are pulled by an engine with a forc of 4 x 105 N The tension in the coupling between...
- Q D D A ring of thin wire with active resistance R and inductance L rotates with constant angular velocity in the external uniform magnetic field perpendicular to the rotation axis...
- Q 3 4800 02 4 5800 52 3 4800 2 26 If current is passed through a spring then spring will 26 after fein 1 Expand 2 Compress 1 3 Remain...
- Q 3 1 2 4 4 1 5 The dielectric strength of air is 5 x 10 V m The maximum charge that can be given to a solid sphere of...
- Q In a coil of self inductance 20 mH the current varies with time t as shown in the figure 1 A LO 5 t ms 50 The magnitude of change...
- Q A ring of insullating material is situated at one end of a semi infinite long line of charge If is charge per unit length for ring as well as line...
- Q Some cases regarding vertical circular motion each circular path is having radius R are shown in Column 1 Column 2 shows tension normal at point B While column 3 indicates...
- Q An object is launched from a cliff 20 m above the ground at an angle of 30 above the horizontal with an initial speed of 30 m s How far...
- Q A ship of mass 3 x 107 kg initially at rest is pulled by a force of 5 x 104 N through a distance of 3 m Assume that the...
- Q D 14 35 180 Ramesh joined the class XI by one week late He missed the concepts of units and measurements chapter in physics Teacher asked him a question for...
- Q Figure shows three identical particles connected to massless rods forming an equilateral triangle System is spun and projected under gravity velocity of projection is in plane of figure Acceleration of...
- Q Two long conducting bars P and Q are fixed parallel to each other in a horizontal plane some distance apart On these bars two parallel Jumpers J and J each...
- Q A parallel plate capacitor of separation d is deformed as shown with 1 1 d or d or d for the capaci tance to remain unchanged a 1 d l...
- Q 40 A coil having n turns and resistance R is connected with a galvanometer of resistance 4R The combination is moved in time t such that magnetic flux per turn...
- Q An observer with a mass 10kg moves at a constant velocity of 10 m s A constant force then acts for 4 seconds on the object and gives it a...
- Q 35 The current through the external resistance R 402 as shown in the following circuit is 10 V 202 1 Zero 3 5 A ugh Work 20 V ww 4Q...
- Q from a clif A ball is thrown horizontally such that it strikes the ground after 5s The line of sight makes an angle 37 with the horizontal The initial velocity...
- Q A ball of mass m is projected from a point P on the ground as shown in the figure It hits a fixed vertical wall at a distance from P...
- Q 5 A particle moving in a straight line along points P Q R has an instantaneous velocity of 10 m s at a point Q The point P is 2...
- Q Find minimum force required to applied to the trolley of mass 9m so that blocks of masses 4m and m remain stationary with respect to the trolley Ground is smooth...
- Q Estimate the surface energy in Joules per square meter for a covalently bonded crystal silicon diamond structure for a plane parallel to 100 The bond energy of Si Si is...
- Q o Bok 4 E B K 35 Relation between electric field and magnet field in electromagnetic wave is ECB wher c speed of light in vacuum Ratio of energ density...
- Q Test 4 Code A 7 In the circuit shown below if the tap key K is pressed at time t 0 then which of the following statements is false K...
- Q shape of square is placed in a variable magnetic field which varies at the rate of dB as shown in figure The magnitude of emf dt between points a and...
- Q 32 In the following circuit diagram the value of i i is 222 www ing 20 V 1 2 A 3 8 A 29 www www 352 www 1092 422...
- Q corner of 73 Three identical charge Q are a equilateral triangle What should be the minimum velocity given to charged particle q placed at the centre of the triangle to...
- Q 62 Two conducting spheres each given a charge q are kept far apart as shown The amount of charge that crosses the switch s when it is closed is 1...
- Q Two particles A and B are at corners of the field A moves with velocity 3 m s at an angle of 60 to the line AB Find the angle...
- Q 20 Two particles A and B are initially 40 m apart A is behind B Particle A is moving with uniform velocity of 10 m s towards B Particle B...
- Q 11 In the circuit shown R 10 02 R 20 2 R 30 2 and R 20 02 Potential difference between b and d Vb Vd is b 1 1...
- Q rotation 27 An electron with mass m velocity v and charge e describing half a revolution in a circle of radius r in a magnetic field B will experience change...
- Q If the Ka radiation of Mo Z 42 has a wavelength of 0 71 calculate wavelength of the corresponding radiation of Cu i e Ka for Cu Z 29 assuming...
- Q An object is thrown vertically upward Which one of the following statements is false At the top of the trajectory the acceleration vector is zero When the object is moving...
- Q sphere B made of n size If charge on ers of a 27 The energy stored in 2 F capacitor as sh the circuit in steady state will be 1...
- Q NT W AB WA AC WAD ev 27 0 V eV 18 0 V OV B 36 0 V the work W in electron volts done by the electric force...
- Q ALONG WITH SOLUTION PLZ TELL ME WHAT APPROACH AN D WHICH METHOD SHOULD I TAKE IN WHAT WAY TO SOLV E FOLLOWING QUESTION AND ALL SUCH QUESTIONS OF T HIS...
- Q Find the true correct statements from the following During clear nights the temperature rises steadily upward near the ground level Two spheres of the same material have radii 1m and...
- Q If velocity of an electron in third energy level of a hydrogen like atom is v then velocity of electron in fifth energy level is Only one correct answer A...
- Q ect band gap semiconductor 16 op Hence correct option is d If relative density of tungeston is 18 8 gm cm and its atomic weight is 184 assuming that at...
- Q Half part of ice block is covered with black cloth and rest half is covered with white cloth and then it is kept in sunlight After some time clothes are...
- Q There is a rough black spot on a polished metallic plate It is heated upto 1400 K approximately and then at once taken in a dark room Th find true...
- Q iTutor All India Aakash Test Series for NEET 2021 21 Five point charges of charge Q each are placed at vertices of a regular hexagon as shown in the figure...
- Q 27 Two similar very small conducting spheres have charges 40 C and 20 C and are at a certain distance apart Now they are touched and kept at same distance...
- Q 28 Two non interacting inductors L 2 mH and L 5 mH are connected in parallel then respective ratio of 1 Flux is 1 1 2 Current is 5 4...
- Q B 60 ms C 0 1 ms D 5 ms A force of 5N acts on a body of weight 9 8N What is the acceleration produced m sec D...
- Q 1 7 pts A man runs at a constant speed of v 5 m s along a straight road A car that was initially at rest starts moving toward the...
- Q The round weightless bar in the figure is in in diameter E 30 106 psi The applied load is 5700 lbf Find the tensile stress in t bar and the...
- Q The four arms of a Wheatstone bridge as shown in figure have resistances as indicated Calculate the current through conducting arm BD B 202 as EE F Ed 35 at...
- Q 11 Two identical particles move towards each other with 11 0 yelocity 2V and V respectively The velocity of centre Chass is 505 i N 1 35 36 4m vo...
- Q Question No 18 If root mean square speed of hydrogen molecules at 300 K is 1930 m s then at 900 K evaluate the root mean square speed of oxygen...
- Q A police van moving on a highway with a speed of 30 km h and a thief s car speeding 2 away in same direction with speed is 192 km...
- Q 3 4 5R A particle of mass m is projected from orly speed u at an angle 8 with positive x axis Posit y axis is in vertical upward direction...
- Q The power dissipated in the following circuit will be about half of its maximum value at approximately 1H 100 Q 50 sinof 1 w 1050 rad s 2 w 1000...
- Q A toy cannon uses a spring to project a 5 40 g soft rubber ball The spring is originally compressed by 4 91 cm and has a force constant of...
- Q 26 Two insulating rods of equal length R one of charge q and other of charge q form a circle of radius R one rod forms one half of the...
- Q Two athletes A and b participated in a race along a circular path with constant speed o f 11 m s and 13 m s respectively B reache s the...
- Q 3 F F A thin circular ring of mass M and radius r is about its axis with a constant angular velocity w Two objects each of mass m are...
- Q A bomb of mass 3 0 kg explodes in air into two pieces of masses 2 0 kg and 1 0 kg The smaller mass goes at a speed of...
- Q A block of mass m is attached to one end of a massless spring of spring constant k The other end of the spring is fixed to a wall The...
- Q 4 The electric field lines due to two charges A and B are as shown in the figure The ratio of charges on A and Bis B 1 3 4...
- Q Match the terms of Column I with the items of Column ll and choose the correct option from the codes given below Column l Colu A Diamagnetic 1 Ho Hr...
- Q A particle is oscillating according to the equa tion X 7 cos 0 5 nt where t is in second The point moves from the position of equilib rium to...
- Q Which of the following options is are true for the given phase transformation curve of the ice water steam system if Q cal s heat is supplied to it Take...
- Q A coin is placed on a horizontal platform which undergoes vertical simple harmonic motion of angular frequency The amplitude of oscillation is gradually increased The coin will leave contact with...
- Q 11 Which of the following statements is true about magnetic field intensity a Magnetic field intensity is the number of lines of force crossing per unit volume b Magnetic field...
- Q 23 In the given figure a hemispherical object is located in uniform electric field The electric flux through the curved surface is R Radius of the base E 21 DOE
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