Physics question and answers for July 01, 2024
- Q Two coaxial dipoles of dipole moments p and p are separated by a distance r The magnitude of electric force on p due to p is k 1 3 2kp...
- Q A parallel beam of electrons of a given momentum pass through a screen S containing a slit and then produces a diffraction pattern on a screen S placed behind it...
- Q In the circuit shown in figure 50 www 40 30 ALLEN 41 40V 1 Power supplied by battery is 200W 2 Current in wire AB is zero 3 Potential difference...
- Q Two coherent light sources each of wavelength A are separated by distance 3A The total number of minima observed on the line AB which runs from to o is P...
- Q 5 The distance between a town and a bus stop is 30 km A man started to walk from the bus stop to the town at 7 30 a m...
- Q A disc is given an initial angular velocity wo and is placed on rough horizontal surface as shown The quantities which will not depend on the co efficient of friction...
- Q A charged particle having charge 2 C is projected with velocity 21 33 m s inside a region having E 23 N C and B acting on the particle in...
- Q 3 A uniform rectangular plate has been bent as shown in the figure The two angled parts of the plate are of identical size The moment of inertia of the...
- Q 31 For the reaction N 05 g 2NO2 O2 the rate of 2 g g 1 S disappearance of N O5 is 6 25 x 10 mol L s The...
- Q 38 A linear charge having linear charge density penetra a cube diagonally and then it penetrates a sph diametrically as shown What will be the ratio of fi coming out...
- Q 50 From NCERT NEET 2016 A black body is at a temperature of 5760 K The energy of radiation emitted by the body at wavelength 250 nm is U at...
- Q Calculate the acceleration of the block and trolly system shown in the figure The coefficient of kinetic friction between the trolly and the surface is 0 05 g 10 m...
- Q In the circuit of adjoining figure the current through 1202 resister will be 1 1 A 3 2 5 E A 502 5V 10022 1202 wwww 552 5V H A...
- Q 58 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...
- Q The two vectors A and B that are parallel to each other are 1 3 6 9k 2 3 6 9k 3 2 6 9k 4 A 21 31 3k...
- Q 1 50 W 3 200 14 4 400 W 22 A capacitor of capacitance 1 F is charged to a potential of 1 V It is connected in parallel to...
- Q 6 82 A massive body moving radially from a planet of mass M when at distance r from planet explodes in such a way that two of its many fragments...
- Q An electric dipole consist of two opposite 18 charges each of magnitude 1 C separated by a distance of 2 cm The dipole is placed in an external field of...
- Q In a standard YDSE set up a slab of thickness t refractive index is placed in front of the upper slit Other symbols have usual meaning 1 11 III IV...
- Q Electric field intensity at centre of semicircular 16 gada are as shown in fig is 82 1 10 10R 2 10 22 3 k 4 5 2 OR Telegram an...
- Q a Liquid oxygen at 50K is heated to 300K at constant pressure of 1 atm The rate of heating is constant Which one of the following graphs represents the variation...
- Q In the circuit of adjoining figure the current 32 through 1202 resister will be 1 1 A 2 502 www SV ww 1202 3 SQ F ZA 4 0 A...
- Q 11 Two coherent sources of different intensities send waves which interfere The ratio of maximum intensity to the minimum intensity is 25 The intensities of the sources are in the...
- Q 2 13 The dispersive powers of flint glass and crown glass are 0 053 and 0 034 respectively and their mean refractive indices are 1 68 and 1 53 for...
- Q The graph shown below shows variation of de Broglie 1 wavelength A versus where Vis accelerating potential for three charged particles of equal charges but different masses 2 B O...
- Q 52 As shown in figure if capacitor of capacitance C is charged by connecting it with a resistance R then energy given by battery will be fay my fagur af...
- Q If temperature is increased from 27 C to 127 C what is ratio of de Broglie wavelength of wave associated with a material particle at these two temperature 1 155...
- Q A solid cylindrical aluminum conductor 25 km long has an area of 336 400 circular mils Obtain the DC conductor resistance at a 20 C and b 50 C The...
- Q O 15 cm A concave mirror is moving with velocity 41 21 cm s whereas a point object is moving with 8i 11j cms as shown in figure The object...
- Q 6 For a cell terminal P D is 2 2V when circuit is 26 open and reduces to 1 8V when cell is connected to a resistance of R 502...
- Q V A m 2qB X XXX X X X X X X X 2B W X X B X XXX X B K W if v is the velocity just...
- Q A conducting loop slides on a horizontal frictionless table into a square region of uniform magnetic field as shown Which graph is the most appropriate option showing the speed v...
- Q The energy difference between first excited state and ground state of a given system is 1 96 eV The transition occurs between first excited state and ground state Given K...
- Q A particle with mass 1 0 mg having charge 2 0 C move under the action of a uniform electric field of 21 31 N C If the velocity of...
- Q The scale of a galvanometer is divided into 150 equal divisions The galvanometer has the current sensitivity of 10 divisions per mA and voltage sensitivity of 2 5 divisions per...
- Q Under normal operating conditions the gate terminal of an n channel junction field effect transistor JFET and an channel metal oxide semiconductor field effect transistor MOSFET are a both biased...
- Q The maximum and minimum magnitudes of resultant of two vectors are 12 units and 6 u respectively Then the magnitudes of two vectors will be A 8 units 4 units...
- Q 32 During 2A B Run the kinetic study of the reaction C D following results were obtained 4 in M B in M Initial rate of formation of 1 D...
- Q Two blocks of mass 6 kg and 4 kg are connected by a string as shown Acceleration of both blocks when F 100 N is applied on the pulley 6...
- Q A current 1 flows along a triangular loop having sides of equal length a The strength of magnetic field at the centre of the loop is A B 3 I...
- Q 1 Highly energetic electrons are bombarded on a target of an element containing 30 neutrons The ratio of radii of nucleus to that of Helium nucleus is 14 3 The...
- Q parallel plate capacitor has capacitance 5 50 F a How much energy is stored in the capacitor if it is connected to a 15 00 V battery 10 b If...
- Q 50 Velocity of sound waves in air is 330 m sec For a particular sound in air a path difference of 40 cm is equivalent to a phase difference of...
- Q The refractive index of material of plano convex lens if the radius of curvature of convex lens is 20 cm and focal length is 60 cm will be wich 43...
- Q STATEMENT 1 A body is lying at rest on a rough horizontal surface A person accelerating with acceleration al where a is positive constant and i is a unit vector...
- Q The nucleus of the atom Be consists of a 13 up quarks and 13 down quarks c 14 up quarks and 13 down quarks Which one of the following nuclear...
- Q ected with 2gR from the lowermost point of smooth vertical circular track of radius R as shown Then C B A 1 Particle complete circular path 2 Particle will leave...
- Q 48 When ordinary light of intensity 100 unit is incident on a polariser The output intensity will be Caffarell Gidl Gafah S100 at faria aldi ari 3 75 2 50...
- Q There are two concentric conducting spherical shells of radius R and 2R respectively Inner shell is given charge Q and outer shell is neutral If both shells are connected by...
- Q 17 The two ends of an inextensible string of length I and mass M are fastened together on a circular loop and set spinning about the centre of the circle...
- Q Two metal spheres of radii a and b are connected by a conducting wire Their separation is very large as compared to their dimensions The capacitance of this system is...
- Q A uniform stick of mass 18 kg and length 3 m spins around on a frictionless horizontal plane with its Centre of Mass stationary A mass M is placed on...
- Q 30 A dip circle is taken to geomagnetic equator The needle is allowed to move in vertical plane perpendicular to magnetic meridian The needle will stay In horizontal plane only...
- Q 5 The first law of thermodynamics is concerned with the 1 Conservation of momentum 3 Conservation of mass 1 3 2 Conservation of energy 4 Conservation of temperature 2 f...
- Q A circuit is connected as shown in the figure with the switch Sopen When the switch is closed the total amount of charge that flows across Sis A O Only...
- Q 7 50 g ice at 0 C is dropped into a calorimeter containing 100 g water at 30 C If thermal capacity of calorimeter is zero then amount of ice...
- Q Electromagnetic radiations of intensity 1 W m strikes on the surface of a substance which reflect 80 incident radiation back into same medium The radiation pressure on the surface of...
- Q Identify the correct relation for the given diagram for frequency K V03 V02 V01 V1 V2 V3 V2 V3 V1 V3 V2 V1 V1 V2 V3 O anode potential
- Q The potential difference across the inductor when it is co nnected to battery is only the induced EMF Right why do we not consider the potential drop developed across induc...
- Q 6 A ball is projected upward then it is at same height of 80m at 8s and 10 s What will be its projecti velocity a 1 9 m s...
- Q R R C C 3 2 points Consider the circuit shown in Figure le The battery has an EMF of 60 0 V and negligible internal resistance R2 2 002...
- Q Illustration 3 117 Consider an ellipse having its foci at A z and B 2 in the Argand plane If the eccentricity of the ellipse be e and it is...
- Q Briefly explain the following instructions and indicate the operand no of bytes taken no of machine cycles with proper explanation like Fetch Read Write and no of T states in...
- Q Which of the following is true when a dipole is placed in non uniform and increasing electric field Only one correct answer A Net force on it is always equal...
- Q 3 3 4 4 12 1 The escape velocity on a planet with radius 41 double that of earth and mean density equal to that of earth will be escape...
- Q 2 Light of wavelength 5000 is incident normally on a plane transmission grating Find the difference in deviations in the first and third order spectra The number of lines per...
- Q liquid of refractive index u is poured on glass g 1 5 slab to form a thin layer c g thickness t 2 5 A monochromatic ligh beam of wavelength...
- Q Match the following Mixture of chalk and water Mixture of sand and water Mixture of iron filings salt and sand Husk and paddy Magnetic separation Decantation Filtration Hand picking
- Q spherical portion of radius Restic From a solid sphere of mass M and radius R a shown Find gravitational potential at of cavity M R 1 3 4GM R 3...
- Q 128168 current carrying As shown in diagram a conductor is subjected to steady uniform magnetic field Then B Torque t 0 force F 0 Torquet 0 force F 0 Torque...
- Q SSAGE aser system is capable of Ex 10 Sev K or 1 38 x 10 lasing at several infrared wavelengths where the most prominent wavelength is 3 1235 mm Given...
- Q PASSAGE The energy difference between first excited state and ground state of a given system is 1 96 eV The transition occurs between first excited state and ground state Given...
- Q A rod is clamped at both of its ends and stationary longitudinal waves are produced in it In first experiment the rod has a total of 4 nodes with amplitude...
- Q A positive charge particle having charge q enters a region where magnetic flux density is Bo with speed vo as shown in the figure The time after which it will...
- Q 1 28 N 2 16N 3 32 N 4 72 N Consider the following statements 36 S An object shall weigh more at pole than at equator when weighted by...
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