Physics question and answers for September 04, 2024
- Q optio 1 Which of the following is not a fundamental quantity a Current c Weight 2 A physical balance is used for the measurement of a length c area 3...
- Q A point source of fight 5 is placed at distance L in front of the centre of plane mirror of width d which is hanging vertically on a wall A...
- Q resistance 2r is also connected in series with the capacitor The amount of heat liberated ins of capacitance C is charged by a battery of emf E and internal resistance...
- Q Example 14 In the adjacent figure angle 9 of the inclined plane is adjustable A block is kept on the incline and 9 is increased slowly from 0 and it...
- Q Water flows through a horizontal pipe of varying cross section at a rate of 0 5 m s1 The speed of water at a point where area of cross section...
- Q 3 A wire of length L and 3 identical cells of negligible internal resistances are connected in series Due to the current the temperature of the wire is raised by...
- Q Determine the x and y coordinates of the centroid of the shaded area 125 mm O 125 mm Select one a 125 3 mm 70 2 mm O b 132...
- Q In an R C series circuit Xc R then the phase angle between the applied voltage and circuit current is Select one a 90 degree b 30 degree c 45...
- Q 13 A particle of mass m and charge q is fastened to one end of length 7 The other end of the string is fixed to the point O The...
- Q In the diagram shown the charge Q is fixed Another charge 2q and mass m is projected from a distance R from the fixed charge Minimum separation between the two...
- Q The equivalent capacitance of the combination as shown in the figure between point A and Bis 10 F A 20 uF 30 F O 30 F O 20 F O...
- Q A spool initially at rest is kept on a frictionless incline making an angle 0 37 with the horizontal The mass of the spool is 2kg and it is pulled...
- Q answered If in an RLC series circuit the frequency is below out of 2 00 resonant frequency g question estion 2 Select one O a Xc XL O b XC...
- Q This section contains 35 SINGLE CORR TYPE questions Each question has 4 Read More f two rods of length L and 2L having coefficient of linear expansion a and 2a...
- Q f a metal wire is stretched much beyond its elastic limits yield point and released It will Come back to original length O Loss its elastic property completely Contract only...
- Q A black spot is present at the centre of the face of an equilateral prism A man places his eye directly at the opposite corner He sees two images of...
- Q Charge through a cross section of a conductor is given by Q 3 2 C where tis time in second The average current through the conductor in the interval t...
- Q less intense 10 Interference was observed in interference chamber where air was present now the chamber is evacuated and if the same light is used a careful observer will see...
- Q 2 The electric field on two sides of a thin sheet of charge is shown in the figure The charge density on the sheet is On E 8V m E...
- Q What is the change in Gibb s free energy during isothermal expansion of 1 mole of ideal gas from a pressure of 10 atm to a pressure of 1 atm...
- Q View in English A parallel plate air capacitor is charged to a potential difference V After disconnecting from battery the plates of capacitor is pushed gent by an insulating handle...
- Q Single Correct Option 1 Two very large thin conducting plates having same cross sectio shown in figure They are carrying charges Q and 3Q respectively The variation of electric field...
- Q 13 A current carrying power line carries current fro east to west The direction of magnetic field short distance vertically below it is 1 North to South 2 South to...
- Q 09 The input link O P of a four bar linkage rotated at 2 rad s counter clockwise directic as shown below The angular velocity the coupler PQ in rad...
- Q 19 If 0 and 0 be the apparent angles of dip observed in two vertical planes at right angles to each other then the true angle of dip 0 is...
- Q Match the columns Column A 1 Length 2 10 C to 110 C 3 Mass 4 Time 5 Measuring human body temperature Column B a Pendulum b Tonne c Clinical...
- Q View in A wire of resistance xohm is drawn out so that its length is increased to three times its original length and its new resistance becomes 36 Q then...
- Q In the given circuit the potential difference between point A and B is 18 V and charge on 2 F capacitor is 24 C The energy stored in capacitor Cis...
- Q The bob of a 0 2 m long pendulum describes an arc of circle in a vertical plan f the tension in cord is 3 times the weight of the...
- Q The ammeter A reads 4 A and the voltmeter Vreads 40 V The value of resistance Ris Assuming finite value of resistance of ammeter and voltmeter R Exactly 10 ohm...
- Q A uniform circular disc placed on a rough horizontal surface has initially a velocity v and an angular velocity as shown in the figure The disc comes to rest after...
- Q The moment of inertia of a triangle of base b and height h about the centroidal axis parallel to its base is Select one O a 1 36 bh Ob...
- Q 13 A capacitor of capacity Cis charged to a potential difference V and another capacitor of capacity 2C is charged to a potential difference 4 V The charging batteries are...
- Q A body of mass 10 kg is kept on horizontal floor of coefficient of static friction s 0 5 and coefficient of kinetic friction k 0 45 as shown The...
- Q 93 How many redox equivalents will be removed from PGAL and transferred to a molecule of NAD if two molecules of glucose enter the glycolysis 1 2 3 8 2...
- Q Q8 Assume that a neutron breaks into a proton and an electron The energy released during this process is Mass of neutron 1 6725 x 10 27 kg Mass of...
- Q In Young s double slit experiment carried out with light of wavelength 2 5000 the distance between the slits is 0 2 mm and the screen is at 200 cm...
- Q 8 In Young s double slit experiment the slits are 2 mm apart and are illuminated by photons of two wavelengths A 12000A and 10000A At d what minimum distance...
- Q c polarization d photoelectric effect A paper with two marks having separation d is held normal to the line of sight of an observer at a distance of 50m The...
- Q Electrostatic field in a region is given by E yzi zx xyk V m where x y and z are in m If electric potential at origin is zero then...
- Q In a circuit shown in figure the heat produced in 50 resistor due to current flowing in it is 20 J The heat produced in 60 resistor is 402 www...
- Q The linear density of a thin rod of length 1 m varies as 1 2x kg m where is distance from its one end placed at origin What is distance...
- Q 148 In a double slit experiment the two slits are 1 mm apart and the screen is placed 1 m away A monochromatic light wavelength 500 nm is used What...
- Q View in Engilah Ten cell each of emf E and same internal resistance rare connected in series If due to oversight one cell is connected wrongly then the equivalent e...
- Q 2 In Young s double slit experiment the separation d between the slits is 2 mm the wavelength of the light used is 5896 and distance D between the screen...
- Q This section contains 35 SINGLE CORREC TYPE questions Each question has 4 Read More A block of mass 16 kg is released from top of a smooth inclined plane as...
- Q 47 In the Young s double slit experiment the intensity of light at a point on the screen where the path difference is is K 2 being the wave length...
- Q O An auditorium has reverberation time of 2 second The total absorption area in the hall is 4980 m 2 the coefficient of absorption is 0 15 What is volume...
- Q 14 The ele a distance from the centre d 24n Eor c 6a Ep 15 Two identical coaxial rings each of radius R are separated by a distance of 3R...
- Q In a van de Graaff generator the radius of sphere is 2 m The maximum potential of the sphere can be given Em 3 x 106 V m 3 x...
- Q When a small uncharged conducting ball of radius a 1 cm and mass m 50 gm is dropped from a height h above the centre of another large conducting sphere...
- Q 1 A parallel beam of monochromatic light of wavelength 5000A is incident normally on a single narrow slit of width 0 001 mm The light is focussed by a convex...
- Q 17 Young s double slit experment is first performed in air and then in a medium other than air It is found that 8th bright fringe in the medium lies...
- Q 6 The periodic waves of intensities I and 1 pas through a region at the same time in the sam direction The sum of the maximum and minimun intensities is...
- Q 52 In a diffraction pattern due to a single slit of width a the first minimum is observed at an angle 30 when light of wavelength 5000 is incident on...
- Q a 0 4 Six charges are placed at the vertices of a regular hexagon as shown in the figure The electric field on the line passing through point O and...
- Q A vertical dam on a large lake is 30 ft tall and 60 ft wide and the water level is 3 ft below the top of the dam In the...
- Q View in English In a meter bridge the balancing length from the left end standard resistance of two ohm is in the right gap is found to be 40 cm...
- Q The assembly shown in the figure is composed of two mass less rods of length I with two particles each of mass m The natural frequency of this assembly for...
- Q View in English Three identical bulbs are connected as shown in figure When switch S is open the power consumed in the bulb A is P what is the power...
- Q 51 Two slits in Young s experiment have widths in the ratio 1 25 The ratio of intensity at the maxima Imax is and minima in the interference pattern min...
- Q 2 In a Fresnel biprism experiment the two positions of lens give separation between the slits as 16 cm and 9 cm respectively What is the actual distance of separation...
- Q A capacitor of capacitance 2 F is charged to a potential difference of 5 V Now the charging battery is disconnected and the capacitor is connected in parallel to a...
- Q Q 5 The battery in the diagram is to be charged by the generator G The generator has a terminal voltage of 120 volts when the charging current is 10...
- Q The Young s double slit experiment is performed with blue and with green light of wavelengths 4360 and 5460A respectively Ifx is the distance of 4th maxima from the central...
- Q Q 12 By error a student places moving coil voltmeter V nearly ideal in series with the resistance in a circuit in order to read the current as shown The...
- Q 149 For a parallel beam of monochromatic light of wavelength A diffraction is produced by a single slit whose width a is of the wavelength of the light If D...
- Q In Young s experiment two coherent sources are placed 0 90 mm apart and fringe are observed one metre away If it produces second dark fringe at a distance of...
- Q View in English Three resistance P Q Reach of 30 and an unknown resistance Sform the four arms of a wheatstone bridge circuit When a resistance of 6 Q is...
- Q ERT T P is not Which of the following phenomenon common to sound and light waves 1988 a Interference c Coherence b Diffraction d Polarisation 19891
- Q 53 The intensity at the maximum in a Young s double slit experiment is Io Distance between two slits is d 52 where is the wavelength of light used in...
- Q 146 A beam of light of 600 nm from a distant source falls on a single slit 1 mm wide and the resulting diffraction pattern is observed on a screen...
- Q 150 At the first minimum adjacent to the central maximum of a single slit diffraction pattern the phase difference between the Huygen s wavelet from the edge of the slit...
- Q A uniform rope of length L lies on a table If the coefficient of friction is p the maximum fractional length of the hanging part of the rope from the...
- Q 6 There are four concentric shells A B C and D of radii a 2a 3a and 4a respectively Shells Band D are given charges q and q respectively Shell...
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