Physics question and answers for September 06, 2024
- Q 9 A closed container having an ideal gas is heated gradually to increase the temperature by 20 The mean free path will become remain 2 Same 4 33 less 1...
- Q A cylindrical tube closed at one end has a fundamental frequency f in air The th of the tube is filled with water The fundamental frequency of the air column...
- Q A 54 5 V 3 52 B 3 5 V 54 50 C 11V 2 32 D 3V 5402 A 102 resistor is rated capable of dissipating 5W The maximum...
- Q 15 60 8 ms 1 The distance x along x axis and height y for a body projected in x y plane are given as x 6t and y 8t...
- Q The capacitors are initially uncharged In a certain time the capacitor of capacitance 2uF gets a charge 20 C In that time interval the heat produced in the three riesistoris...
- Q In a potentiometer circuit two wires of same material of resistivity one of radius of cross section a other of radius of cross section 2a are joined in series They...
- Q 4 Two particles of masses M and 4M are released from a 3 distance 10 metres from each other Find the point of collision from smaller particle 8 metres 2...
- Q A 0 5A B 0 707A C 1 414A D 1 A A p d of 100V is applied across a copper wire of length 1m The average drif velocity...
- Q A satellite can be in a geostationary orbit around earth at a distance r from the centre If the angular velocity of earth about its axis doubles a satellite can...
- Q 19 The angle of dip is 0 on a given meridian which at an angle 0 with the magnetic meridian If 8 i perpendicular to the first meridian then 8...
- Q 22 For the process A B of an ideal gas of fixed mass the density of gas P A B T 1 Increases 2 Decreases 3 Remains constant A First...
- Q 2 Two similar nature magnetic poles of strength 16 A m and 64 A m are placed at a distance of 120 cm in air At which point on the...
- Q r rotates about its axis 49 A conducting disc of ra with an angular speed w in a uniform magnetic field A resistance R is connected between centre and rim...
- Q What is the refractive index of material of plano convex lens If radius of curvature of the convex surface is 20 cm and focal length of the lens is 30...
- Q A ray light of intensity incident on a parallel glass slab at the point A and it undergoes partial reflection and refraction as shown in the figure At each reflection...
- Q c 4xy 2 A force F 21 31 k N is acting on body at a position 7 61 31 2k Calculate the torque about the origin a 31 2...
- Q A hollow spherical shell is compressed to half its radius The gravitational potential at the centre 1 increases 2 decreases 3 remains same 4 during the compression increases then returns...
- Q 4 A projectile is projected with speed vo at angle 0 from the horizontal ground The radius of curvature of the projectile is maximum at 1 Highest point 2 Between...
- Q D Molar specific heat of oxygen at constant pressure Cp 7 2 cal mol C and R 8 3 J mol K At constant volume 5 mol of oxygen is...
- Q A body is just floating in a liquid their densities are equal If the body is slightly pressed down and re leased it will 1 start oscillating 2 sink to...
- Q A cylinder of radius R is kept embedded along the wall of a dam as shown Take density of water as p and length of cylinder as L The pgLR...
- Q 60 Figure below shows a square loop of side 0 5 m and resistance 10 2 The magnetic field has a magnitude B 1 0 T The work done in...
- Q A B C An ideal monoatomic gas undergoes different types of processes which are described in column 1 Match the corresponding effects in column II The letters have usual meaning...
- Q Full Marks 4 If ONLY the correct numerical value is entered as answer Zero Marks 0 In all other cases An amount Q of heat is added to a monoatomic...
- Q The masses and radii of the earth and moon are M R and M R respectively Their centres are at distance d apart The minimum speed with which a particle...
- Q Which of the following statement is true about End Fire antenna You can select multiple correct options Only one element is driven All elements are driven Quarter wave dipoles are...
- Q Three moles of an ideal gas being initially at a temperature To 300 K were isothermally expanded n 5 0 times its initial volume and then isochorically heated so that...
- Q A U tube having horizontal arm of length 20 cm has uniform cross sectional area 1 cm It is filled with water of volume 60 cc What volume of a...
- Q Question No 17 In an LCR series circuit R 10 Q XL 20 0 and Xc 10 0 The average value of current for a complete cycle source voltage V...
- Q If 21 31 k and B 41 aj 2k are parallel to each other then value of a can be Question Type Single Correct Type 1 2 3 4 6...
- Q Zero Marks 0 In all other cases wall has two layer A and B each made of different material both the layers have the same thickness The thermal conductivity of...
- Q 1 Time period of vibration of a bar magnet in vibration magnetometer is T If the magnet is cut into n identical parts such that length of each part is...
- Q 8 Measurement of focal length of a convex lens by putting an object at a distance u from the lens and v is th distance of real image from lens...
- Q 17 An inductor of inductance L a capacitor of capacitance C and a resistor of resistance R are connected in series across E E sin The reading of hot wire...
- Q The ionization potential of H atom is 13 6 V Photons of energy 12 75 eV are made to incident on sample of H atoms at ground state How many...
- Q The antenna current produced by an unmodulated carrier is 2 7 A into n antenna with a resistance of 300 ohm When amplitude modulated the antenna burrent rises to 3...
- Q In the given figure the coefficient of friction between block and incline is u If the block slides on inclined with constant velocity the friction acting on block will be...
- Q Find the energy stored in the capacitor in J in steady state in the given circuit shown A 7 C 9 B 8 D 6 AD 2 F RC CA...
- Q An electromagnetic wave is travelling to the east At one instant at a given poin ts E vector points straight up What is the direction of its B vector North...
- Q 2 If radiations ranging from ultraviolet to infrared are passed through hydrogen gas at room temperature then the absorption lines will be observed in the 1 Lyman series 2 Balmer...
- Q 39 A small square loop of wire of side I is placed inside a large square loop of side L L I If the loops are coplanar and their centres...
- Q Q 5 Velu stood on the platform but he felt as if he was still on a moving train Why What made him feel miserable 02 Q 6 i Velu...
- Q go from magnetic equator towards geographic south pole the angle of dip will become More and more vertically downward and perpendicular to the surface at magnetic pole 2 More and...
- Q 41 A light of wavelength medium of refractive index 1 5 Frequency and wavelength of light in the medium respectively are 1 5 x 1014 Hz 6000 5 x 1014...
- Q In the arrangement shown in the figure find the equivalent capacitance between A and B symbol have their usual meaning each capacitor has identical dimensions A 3 A ok d...
- Q To determine the accurate position of the target GPS receiver the GPS system must receive signals from satellites ID 1101924461 NOTE SCREENSHOT PROHIBITED A ID 1101924461 O 2
- Q A cylindrical bar magnet is cut parallel to magnetic axis such that it is divided in two equal parts then the mage pole strength of a single piece of bar...
- Q 32 An electron in a hydrogen atom makes a transition from h N to n N The frequency of the electron in the final state is eight times that in...
- Q 2 In YDSE an electron beam is used to obtain interference pattern If speed of electrons is increased 1 No interference pattern will be observed 2 Distance between two consecutive...
- Q In the figure shown find the accelerations of blocks A B and C immediately after string connecting between block B and block C is cut A a 3g ap g...
- Q n If the potential energy of electron in Bohr s atomic model of hydrogen is taken as zero in its first orbit then the P E of electron in the...
- Q 51 Four identical rods each of mass m and length 1 make a frame in xy plane as shown Calculate its moment square of inertia about the x axis 5...
- Q A fire hydrant delivers water of density p at a volume rate L The water travels vertically upward through the hydrant and then does 90 turn to emerge horizontally at...
- Q Question No Out of the following choose the ray which does not travel with the velocity of light in va X rays Microwave 7 rays B rays
- Q water A resistor of resistance R carries a variable current The current decreases with time continuously such that its value becomes half after every 5s Starting from t 0 the...
- Q Po Two moles of an ideal monoatomic gas are contained in a vertical cylinder of cross sectional area 1 cm as shown in the figure The piston is frictionless and...
- Q The ratio of inductive reactance of an inductor when connected with a source of frequency 10 Hz and 40 Hz respectively is 1 2 1 4 2 3 5 4
- Q Which one value of electric field is possible due to Uniformly charge ring Question Type Single Correct Type 1 2 3 3 KQ 7 R 7 KQ 19 R 7...
- Q under the condition of 15 Inductive time constant for the given L R circuit is 16 mH oooo 160 88762 42 16 2 wwww 6 V www 16 02 422...
- Q Point charge q 2 C and 92 1 C are kept at points x 0 and x 6 respectively Electrical potential will be zero at points Question Type Single Correct...
- Q Last Leap 3 In a double slit experiment the the slit is d The screen is at a distance D from the slits and is the wavelength of light used...
- Q 9 Angular width of principal maximum in single slit diffraction is 0 1 radian Angular width of second order secondary maxima is 10 05 radian 2 0 1 radian 3...
- Q 75 For a series LCR circuit quality factor is o and potential difference across circuit is B The potential difference across inductor in resonance state will be 1 Zero 2...
- Q A magnet of magnetic moment Moscillating freely in earth s horizontal magnetic field makes n oscillations per minu If the magnetic moment is doubled and the earth s horizontal field...
- Q Which of the following statements is NOT correct A An object placed between f and 2f of a concave mirror produces a real image beyond 2f B An object placed...
- Q ich of the following statements regarding a deflection magnetometer is correct The external magnet is kept in East West in tan A position and North South in tan B position...
- Q The motion of a charged particle can be used to distinguish between a magnetic field and electric field in a certain region by firing the charge 1 Perpendicular to the...
- Q Given Potential difference V 8 0 5 V and current I 2 0 2 A The value of resistance R in Q is Question Type Single Correct Type 1 2...
- Q A bar magnet of magnetic moment 4 A m2 is placed along diagonal of a square in x z plane with its center at orig The magnetic field at a...
- Q 30 The slit in a double slit interference illuminated by a light of wavelength 600 nm A thin transparent sheet of thickness t is placed in front of one of...
- Q For two resestors R and R connected in parallel if R 30 1 2 and R 60 2 2 The percentage error in the measurement of equivalent resistance is 1...
- Q Carbon resistor has resistance specified by three bands having colour red yellow and black If this resistor is cut into two pieces of equal length then the new colour code...
- Q 3 In the pair production process a y ray photon creates an electron positron pair If the total kinetic energy of electron and positron is 0 78 MeV then the...
- Q Magnetic field Bo exists perpendicular inwards The resistance of the loop is R When the switch is made closed the current induced in the circuit is x x X X...
- Q A proton a deutron and an x particle accelerated through the same potential difference enter a region of uniform magnetic field moving at right angles to it What is the...
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