Physics all Chapters Combined Mock test to Score 90+ in MHTCET Exam – 02 Leave a Comment / Blog / By admin Click the start button to start the Mock test 129 Sorry! Time up Created on March 22, 2023 By admin Physics all Chapters Combined Mocktest - 02 Learn more! Practice more! Score more!Best of Luck! 1 / 50 The ratio of angular speed of a second-hand to the hour-hand of a watch is 3600 : 1 720 : 1 72 : 1 60 : 1 2 / 50 a b c d 3 / 50 a b c d 4 / 50 a b c d 5 / 50 a b c d 6 / 50 A liquid drop having surface energy ‘E’ is spread into 512 droplets of same size. The final surface energy of the droplets is 2E 4E 8E 12E 7 / 50 With an increase in temperature, surface tension of a liquid (except molten cadmium and copper) increases decreases remains constant first increases and then decreases 8 / 50 When an ideal monatomic gas is heated at constant pressure, fraction of heat energy supplied which increases the internal energy of gas, is 2/5 3/5 3/7 3/4 9 / 50 A die atomic gas (ϒ = 1.4) does 300 J work when it is expanded isobarically. The heat given to the gas in this process is 1050 J 950 J 600 J 550 J 10 / 50 The efficiency of an ideal heat engine working between the freezing point and boiling point of a water, is 26.8% 20% 6.25% 12.5% 11 / 50 A given sample of an ideal gas occupies a volume V at a pressure P and absolute temperature T. The mass of each molecule of the gas is m. Which of the following gives the density of the gas? mkT P/(kT) Pm/(kT) P/(kTV) 12 / 50 R.M.S. velocity of oxygen molecules at N.T.P is 0.5 km/s. The R.M.S velocity for the hydrogen molecule at N.T.P is 4 km/s 2 km/s 3 km/s 1 km/s 13 / 50 Increase in temperature of a gas filled in a container would lead to: decrease in its pressure decrease in intermolecular distance increase in its mass increase in its kinetic energy 14 / 50 A particle is executing S.H.M. of periodic time ‘T‘. The time taken by a particle in moving from mean position to half the maximum displacement is (sin 30o = 0.5) T/2 T/4 T/8 T/12 15 / 50 A body of mass m is attached to the lower end of a spring whose upper end is fixed. The spring has negligible mass. When the mass m is slightly pulled down and released, it oscillates with a time period of3 s. When the mass m is increased by 1 kg, the time period of oscillations become 5 s The value of m in kg is 9/16 3/4 4/3 16/9 16 / 50 A thin bar magnet oscillates with a time period T. If it is cut into equal pieces along its axis, time period of oscillation of each piece is T 2T T/2 T/4 17 / 50 A pipe closed at one end has length 83 centimetre the number of possible natural oscillations of air column whose frequencies lie below 1000 HZ are (velocity of sound in air = 332 m/s) 3 4 5 6 18 / 50 The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second overtone for an organ pipe open at both the ends . The length of organ open at both the ends is 80 cm 100 cm 120 cm 140 cm 19 / 50 A string is vibrating in its fifth overtone between two rigid supports 2.4 m apart. The distance between successive node and antinode is 0.1 m 0.2 m 0.6 m 0.8 m 20 / 50 Wavefront is the locus of all points, where the particles of the medium vibrate with the same phase amplitude frequency period 21 / 50 According to Huygens principle during refraction of light from air to a denser medium wavelength decreases but speed increases wavelength increases but speed decreases wavelength and speed increases wavelength and speed decreases 22 / 50 The polarizing angle of glass is 57 degree. A ray of light which is incident at this angle will have an angle of refraction as 43 degree 25 degree 38 degree 33 degree 23 / 50 The ratio of intensities of two waves is 9 : 1. They are producing interface. The ratio of maximum and minimum intensities will be 10 : 8 9 : 1 4 : 1 2 : 1 24 / 50 a b c d 25 / 50 A metal sphere of 25 cm radius carries a charge of 65 nC, absolute potential is zero 585 V 2340 V 5850 V 26 / 50 a b c d 27 / 50 a b c d 28 / 50 a b c d 29 / 50 The resistances in left and right gap of a meter bridge are 20 Ω and 30 Ω respectively when the resistance in the left gap is reduced to half its value the balance point shifts by 15 cm to the right 15 cm to the left 20 cm to the right 20 cm to the left 30 / 50 In potentiometer experiment, null point is obtained at a particular point for a cell on potentiometer wire x cm long. If the length of the potentiometer wire is increased without changing the cell, the balancinglength will (Deriving source not changed) increase decrease not change become zero 31 / 50 A charged particle is released from rest in a region of study and uniform electric and magnetic fields which are parallel to each other. The particle will move in a straight line circle helix cycloid 32 / 50 a b c d 33 / 50 Two current carrying coils has radii r and 2r and have same magnetic induction at their centres. the ratio of voltage applied across them 1 : 2 2 : 1 1 : 4 1 : 8 34 / 50 A bar magnet of magnetic moment 20 J/T lies allied with the direction of a uniform magnetic field of 0.25 T. The amount of work required to turn the magnet so as to align its magnetic movement normal to the field direction is 0.10 J 0.5 J 0.3 J 5.0 J 35 / 50 A thin bar magnet oscillates with a time period T. If it is cut into two equal pieces along its axis, time period of oscillation of each piece is T 2T T/2 T/4 36 / 50 The magnetic susceptibility is negative for Ferromagnetic material only paramagnetic and ferromagnetic materials diamagnetic material only paramagnetic material only 37 / 50 a b c d 38 / 50 A multimeter reads a voltage of a certain A.C. source as 100 V. What is the peak value of voltage of A.C. source? 200 V 100 V 141.4 V 400 V 39 / 50 When inductance of 1 Henry is connected to 200 volts, 50 Hz source, the maximum value of the current is 0.1 A 0.9 A 1 A 9 A 40 / 50 The LC parallel resonant circuit has a very high impedance has a very high current acts as resistance of very low value has zero impedance 41 / 50 The minimum energy required to eject an electron from the metal surface is called atomic Energy mechanical energy electrical energy work function 42 / 50 The maximum kinetic energy of the photo electrons depends only on potential frequency incident angle pressure 43 / 50 If E and p are the energy and the momentum of a photon respectively, then on reducing the wavelength of photon both p and E will decrease both p and E will increase p will increase but E will decrease p will decrease but E will increase 44 / 50 In a photo electric experiment, if both d intensity and frequency of the incident light are doubled, then the saturation photo electric current remains constant is halved is doubled becomes four times 45 / 50 The ratio of wavelengths of the last line of Balmer series and the last line of Lyman series is 2 1 4 0.5 46 / 50 When an electron in hydrogen atom revolves in stationary orbit, it does not radiate light through its velocity changes does not radiate light and velocity remains unchanged radiates light but its velocity is unchanged radiates light with the change of energy 47 / 50 Half-life of a radioactive substance is 20 minutes. Difference between points of time when it is 33% disintegrated and 67% disintegrated is approximately 10 min 20 min 30 min 40 min 48 / 50 a b c d 49 / 50 In common base circuit of a transistor, current amplification factor is 0.95. Calculate the emitter current if base current is 0.2 mA 2 mA 4 mA 6 mA 8 mA 50 / 50 LED constructed by Silicon carbide, Zinc selenide emit radiation of ______ blue colour red colour orange colour brown colour Your score isThe average score is 32% LinkedIn Facebook Twitter VKontakte 0% Restart quiz Download Above Biology Mock test in PDF format by clicking the below download button. Download Answer Key : Download