Physics question and answers for July 25, 2024
- Q In the figure shown ground smooth whereas surface between 3 kg block and 2 kg block is rough A force of magnitude 10 N is applied on 3kg block horizontally...
- Q A block of mass 2 kg initially is at rest on a rough surface having coefficient of friction p 0 5 A force 20N is applied as shown in figure...
- Q a sv ww R b 10 V 12 V 1 2 c only 3 www Question Type Single Correct Type Q Game 5 V a and c a b and...
- Q The threshold frequency for a certain photosensitive metal is vo When it is illuminated by light of frequency v 200 the maximum velocity of photoelectrons is vo What will be...
- Q the disc s to rest tween e two tant 5 47 A small ball is suspended from a point O by a light thread of length 7 Then the ball...
- Q An air bubble in glass u 1 5 5 is situated at a distance 3 cm from a convex surface of diameter 10 cm as shown The distance from surface...
- Q Two radio active substances A and B have decay constant 52 and respectively At t 0 they have the same number of active nuclei The ratio of number of active...
- Q A particle P performs circular motion such that its position vector F makes an angle 0 with x axis according to following equation e F 6t 8 rad Att 0...
- Q A 2 volt battery a 15 Q2 resistor and a potentiometer of 100 cm length all are connected in series If the resistance of potentiometer wire is 5 02 then...
- Q Focal length of a convex lens of refractive index 1 5 is 2 cm Focal length of lens when immersed in a liquid of refractive index 1 25 will be...
- Q A particle moves with a velocity V 51 31 6k m s under the influence of a constant force F 101 10 20 k N The instantaneous power applied to...
- Q cm 3 4 cm 2 5 cm 4 1 5 cm A ray of light is incident at angle of 60 on a 3cm thick plate u 3 The shift...
- Q 0 375 x 18 x 10 6 75 X mple 9 A magnetic dipole of magnetic moment M is placed on the axis of a current carrying circular la of...
- Q choose the one that best describes the two statements Statements 1 Out of the radio waves and microwaves the radio waves undergo more diffraction Statement 2 Radio waves have greater...
- Q A black hole is an object whose gravitational field is so strong that even light cannot escape from it To what approximate radius would earth mass 5 98x1024 kg have...
- Q Two strings of linear mass densities u and 9u are stretched under same tension A wave travelling on the lighter string towards the heavier string gets partially reflected and transmitted...
- Q 2 52 Find the node voltages in the circuit in Figur P2 52 1 kn V 6V Download Attachments 2 kn V 12V V3 2 kn 2 mA FIGURE P2...
- Q d 2 70 A 20 kg box rests on the flat floor of a truck The coefficients of friction between box and floor are 0 15 and 0 10 The...
- Q Choose true or false for each statement regarding the sign conventions for mirrors Real images appear in front of a mirror and have a positive value for the image distance...
- Q I Doublet of sodium A II Wavelength corresponding to temperature associated with B the isotropic radiation filling all space Wavelength emitted by atomic hydrogen in interstellar C space Wavelength of...
- Q A long straight wire is carrying a current of 2A A rectangular loop of length 1 cm and breadth 10 cm carrying a current of 1A is placed from the...
- Q E TARGET PRE MEDIC Fig shows a plane mirror onto which a light ray is incident If the incidenting light ray is turned by 10 and the mirror by 20...
- Q A plane electromagnetic wave in a non magnetic dielectric medium is given by E E 4 10 7x 50t with distance being in meter and time in seconds The dielectric...
- Q 3 32 4 34 What is the number of images of an object formed by two mirrors if the angle between the mirrors is in between 2n 4 and 2n...
- Q Two plane mirrors A and B are aligned parallel to each other as shown in the figure A light ray is incident at an angle of 30 at a point...
- Q GET PRE MEDICAL 2021 NEET LEADER PHASE IV INTENAL light ray is ned by 10 the angle TEST 01 07 10 2020 A plane mirror is inclined at an angle...
- Q A small block of mass m is allowed to slide from h 2r on an inclined frictionless track in vertical plane from rest position as shown in the figure Find...
- Q For each question enter the correct numerical value in decimal notation truncated rou Answer to each question will be evaluated according to the following marking scheme Full Marks 4 If...
- Q A piece of marble is projected from earth s surface with velocity of 25 m s 2 seconds later it just clears a wall 5 m high What is the...
- Q If p and q are distance of object and real image from the principal focus of a concave mirror then the apeticion between p q and fis pq f 3...
- Q 556 A rod of mass m and length is held vertically on a smooth horizontal floor Now it is released from this position find the speed of its centre of...
- Q Heater of an electric kettle is made of a wire of length L and diameter d It takes 9 minutes to raise the temperature of 0 5 kg water by...
- Q spring balance is attached to the ceiling of a lift A man hangs his bag on the spring and the spring reads 49 N when the lift is stationary If...
- Q le 14 Find the magnetic field at the centre of the circular loop shown in figure Dmy m V on Magnetic field at the point O due to infinite wire...
- Q The electric field a distance from the axis of a cylindrically symmetric charge distribution in vacuum of infinite length and uniform charge per unit length is 1 22 46 r...
- Q Two identical containers kept at the same temperature carry the same gas with different molecular mean free paths 11 and 12 the gas from the first container is completely transferred...
- Q A circus joker throws vertically three balls one after another with an interval of 0 5 s After 0 5 s of throwing the third ball he catches the first...
- Q 25 N force is applied to the block as shown in figure Choose the correct option s if initial velocity of block is zero Normal contact force is 20N Friction...
- Q Ball A is projected from tower of height 30 m and B is projected horizontally at 6 m s A and B collide in air If separation between the towers...
- Q 600 nm and2 b Newton s rings are formed with a source of light containing two wavelengths 450 nm It is founded that mth dark ring due to coincides with...
- Q The ammeter reading in the following circuit will be 1 2 652 wwwww C 292 wwwww Question Type Single Correct Type 652 wwwww 692 8 A 2V 314 4 A
- Q When we place PLC programming such that it gives warning wher room s lights off out of 4 rooms and light controlling unit should gi warning then what is expression...
- Q Two plane mirrors are inclined to each other such that a ray of light incident on the first mirror and parallel to the second is reflected from the seconc mirror...
- Q A horizontal piston cylinder arrangement encloses a gas at a pressure Po The atmospheric pressure is also Po Now a particle of mass m strikes the piston of identical mass...
- Q Performance of PLC decreases with A Increase in Temperature B Decrease in Temperature C Increase in Vibration D Decrease in Vibration Both A and C Only B Only A Both...
- Q A charged particle enters a uniform magnetic field initially travelling perpendicular to the field lines and is bent in a circular arc of radius R If the particle had the...
- Q Random Access Memory is a type of volatile memory in which data is lost as it is powered off then speed of volatile memory is Faster than non volatile memory...
- Q following circuit D are ideal diodes then the value of and are respectively 10 V 2kQ w 1 Zero Zero 3 5 mA Zero D 12 kn ww 7 D...
- Q e 12 A current carrying conductor of length I is bent into two loops one by one First loop has one turn of wire and the second loop has two...
- Q A string of length 50 cm and mass 2 5 g is fixed at both ends A pipe closed at one end has a length of 85 cm When the...
- Q A log of wood floats in water with 1 of its 4 volume above the surface What is the density of wood Question Type Single Correct Type 1 750 gm...
- Q A conductor carrying a current I has three seg ments as shown What is the magnetic field B at the centre of curvature C of the semicircle A C Ho...
- Q 3 64 The basket in a front loading automatic clothes dryer rotates about a horizontal axis The basket rotates so that the force exerted by the basket on clothes located...
- Q Young s double slit experiment a point source is placed on a solid slab of refractive index 6 5 at a distance of 2 mm from two slits spaced 3...
- Q The 10 F capacitor was initially charged by a battery After the switches are closed the potential difference across the 10 F capacitor is found to be 15V Find the...
- Q 01 02 03 04 05 06 07 08 09 10 English Review Q A body of mass M and moving with velocity u makes a head on elastic collision with...
- Q Question which formula should we apply for such kind of questions Please explain the solution for following Questi on and even tell what is limit of resolution and concepts r...
- Q A A rigid body is rolling without slipping on the horizontal surface B C D 1 2 3 4 Column 1 Velocity at point A i e VA Velocity at...
- Q Two point charges of 0 1mc and 0 05m c are kept at points A 2m 0 0 B 2m 0 0 respectively Calculate the electros tatic potential energy of...
- Q Semiconductor A Zener diode having Zener voltage equal to 10 V is used in a voltage regulator circuit as shown in figure If current through the diode is 2 mA...
- Q 38 A conical container of radius R 1m and height H 5m is filled completely with liquid There a hole at the bottom of container of area x x 10...
- Q 5 BEATS Beat phenomenon is physically meaningful only if 1 w w w 00 2 w w w 0 3 17 2 4 0 0 2
- Q INTRODUCTORY EXERCISE 7 2 1 A particle is projected from ground with velocity 40 2 m s at 45 Find a velocity and b displacement of the particle after 2...
- Q Two long metallic coaxial cylindrical capacitors of radii R and 2R are carrying charges Q and Q respectively T energy of the capacitor is U For what values of the...
- Q In a cyclotron the potential difference of AC source connected across dees is 1000 V An a particle is accelerated in this cyclotron If it completes 200 revolutions then kinetic...
- Q exptar why optio 6 For measurement of potential difference potentiometer is preferred in comparison to voltmeter because a potentiometer is more sensitive than voltmeter b the resistance of potentiometer is...
- Q Energy required to move an Earth s satellite of mass m from an orbit c radius R to 5R is M mass of earth R radius of earth Options GMm...
- Q 113 114 1 0 2 0 3 0 4 10 A closed pipe has certain frequency Now its length is halved Considering the end correction its frequency will now become...
- Q 1 For a particular tube there are four of six harmoni frequencies below 1000 Hz are 300 Hz 600 Hz 750 Hz and 900 Hz Find the frequencies missing from...
- Q A particle moves in the east direction with 15 m see for 2 sec then northwards with 5 m s for 8 sec Average speed of the particle is 01...
- Q An electron of mass m is moving in nth orbit of hydrogen atom Magnetic field at centre due to motion of electron is ro Bohr radius Hohe 1 8x mr...
- Q A stone is thrown with a horizontal velocity of 15 ms from the top of the tower If the stone hits the ground at a distance of 100 m from...
- Q 35 The energy of a photon is E hv and the momentum of photon is P then the velocity of photon will be 26 3 wha Whiel 2 EP 4
- Q A thin uniform spherical shell of mass m 2 kg and radius R 10 cm is placed on a rough horizontal surface with a coefficient of friction 0 4 A...
- Q 1 A body is moving with variable acceleration a along a straight line The average acceleration of body in time interval t to t is 2 1 a t t...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!