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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Notes on nuclear physics for neet and ouat |
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Answer» (a) e/m of a particle is called the SPECIFIC charge of the particle. e/m = v/rB. Here, r is the radius of CURVATURE, B is the strength of magnetic field, v is the VELOCITY, e is the charge on CATHODE ray particle and m is the mass. (b) v = E/B. Electric field:- E = V/ ... |
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| 2. |
The elasticity of invarA) Increases with temperature rise B) Decreases with temperature rise C) Does not depend on temperature D) None of the above |
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| 3. |
After effects of elasticity are maximum forA) Glass B) Quartz C) Rubber D) Metal |
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| 4. |
The force constant of a wire does not depend onA) Nature of the material B) Radius of the wire C) Length of the wire D) None of the above |
| Answer» CORRECT ANSWER is C LENGTH of the WIRE | |
| 5. |
Time period of oscillation of a simple pendulum formula |
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Answer» The time period of a simple PENDULUM is 2π √(l/g) |
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| 6. |
Given the wave function: Determine the normalization constant A. |
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Answer» To determine the normalization constant A in a given wave function, we NEED to know the boundry condition which is that the probability of finding the particle at a specefic location ( given by psi^2) approaches 0 as the distance approaches infinity. And the probability of finding the particle in all of the SPACE is 1. |
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| 7. |
Increase in length of a wire is 1 mm when suspended by a weight. If the same weight is suspended on a wire of double its length and double its radius, the increase in length will be [CPMT 1976]A) 2 mm B) 0.5 mm C) 4 mm D) 0.25 mm |
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Answer» HI OPTION d is CORRECT |
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| 8. |
Two wires of equal lengths are made of the same material. Wire A has a diameter that is twice as that of wire B. If identical weights are suspended from the ends of these wires, the increase in length is [EAMCET 1983; MP PMT 1990; MP PET 1995]A) Four times for wire A as for wire B B) Twice for wire A as for wire B C) Half for wire A as for wire B D) One-fourth for wire A as for wire B |
| Answer» CORRECT ANSWER is C of UR QUESTION | |
| 9. |
Why the spring is made up of steel in comparison of copperA) Copper is more costly than steel B) Copper is more elastic than steel C) Steel is more elastic than copper D) None of the above |
| Answer» OPTION C is CORRECT. | |
| 11. |
Two point charges of 5microcolumb and 20 microcoulumb are separated by a distance of 2m find the point on the line joining them at which electric field intensity is zero |
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Answer» The FORMULA for the QUESTION is |
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| 12. |
From a prism which colour has a higher temperature |
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Answer» In the Light and Color unit of The Physics Classroom Tutorial, the visible light spectrum was INTRODUCED and DISCUSSED. Visible light, ALSO known as white light, consists of a collection of component colors. These colors are OFTEN observed as light passes through a TRIANGULAR prism. Upon passage through the prism, the white light is separated into its component colors - red, orange, yellow, green, blue and violet. The separation of visible light into its different colors is known as dispersion |
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| 13. |
The material which practically does not show elastic after effect is [JIPMER 1997; AMU (Engg.) 1999]A) Copper B) Rubber C) Steel D) Quartz |
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Answer» Answer: d) Quartz Explanation: The time DELAY in which the SUBSTANCE regains its original condition after the removal of DEFORMING force is CALLED elastic after effect. It is the time for which restoring forces are PRESENT after the removal of the deforming force it is negligible for perfectly elasticsubstance, like quartz, phosphor bronze and large for glass fibre. |
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| 14. |
Formula to find filter inductance and filter capacitance in vsi |
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Answer» The value of INDUCTANCE is TYPICAL for a line filter and is non crucial. The purpose of the filter is to isolate SMPS HF components from the mains. The inductors FORM TWO ... |
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| 15. |
Formula for average speed when three speed is given |
| Answer» FIND SPEED seprately and then ADD all | |
| 16. |
A wire is loaded by 6 kg at its one end, the increase in length is 12 mm. If the radius of the wire is doubled and all other magnitudes are unchanged, then increase in length will be [MP PMT 1987; AI SSCE 1982]A) 6 mm B) 3 mm C) 24 mm D) 48 mm |
| Answer» HI, OPTION C is CORRECT | |
| 17. |
The expression [M{{L}^{2}}{{T}^{-2}}]represents [JIPMER 1993, 97]A) Pressure B) Kinetic energy C) Momentum D) Power |
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| 18. |
Which of the following pairs of physical quantities has the same dimensions [CPMT 1978; NCERT 1987]A) Work and power B) Momentum and energy C) Force and power D) Work and energy |
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Answer» HELLO FRIEND.. ____________________ ____________________ The answer of U r QUESTION is... Option.A _______________________ Thank you... |
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| 19. |
What happens to image when lens cut horizontally |
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| 20. |
Why when we add sugar to water it's volume does not chang? |
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Answer» I THINK its volume gets CHANGED but with a MINOR DIFFERENCE..N volume of solution ! |
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| 21. |
ML{{T}^{-1}}represents the dimensional formula of [CPMT 1975]A) Power B) Momentum C) Force D) Couple |
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| 22. |
The molality of 15% (w/v) solution of h2so4 with density 1.1g/cm3 is |
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Answer» Amount of solute is 15% ( w/v) |
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| 23. |
Of the following quantities, which one has dimensions different from the remaining three [AIIMS 1987; CBSE PMT 1993]A) Energy per unit volume B) Force per unit area C) Product of voltage and charge per unit volume D) Angular momentum per unit mass |
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Answer» C .HOPE it will HELP you. I don't KNOW exact answer but I know that it will help you. |
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| 24. |
The dimensional formula for impulse is same as the dimensional formula for [CPMT 1982, 83; CBSE PMT 1993; UPSEAT 2001]A) Momentum B) Force C) Rate of change of momentum D) Torque |
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| 25. |
Which of the following is dimensionally correctA) Pressure = Energy per unit area B) Pressure = Energy per unit volume C) Pressure = Force per unit volume D) Pressure = Momentum per unit volume per unit time |
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Answer» answer : OPTION (B) explanation : pressure is force PER unit area. so, dimensional formula of pressure = [ML^-1T^-2] dimensional formula of energy is [ML^2T^-2] so, dimensional formula of energy per unit area = [MT^-2] so, DIMENSIONALLY, pressure ≠ energy per unit area. option (A) is incorrect. again, dimensional formula of energy per unit volume = [ML^-1T^-2] so, dimensionally, pressure = energy per unit volume. option (B) is correct. dimensional formula of force per unit volume = [ML^-2T^-2] dimensionally, pressure ≠ force per unit volume. option (C) is incorrect. dimensional formula of momentum per unit volume per unit time = [MLT^-1]/[L^3][T] = [ML^-2T^-2] so, Dimensionally, pressure ≠ force per unit volume per unit time. option (D) is incorrect. |
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| 26. |
Out of the following, the only pair that does not have identical dimensions is [MP PET/PMT 1998; BHU 1997]A) Angular momentum and Planck's constant B) Moment of inertia and moment of a force C) Work and torque D) Impulse and momentum |
| Answer» B) MOMENT of INERTIA and moment of a FORCE | |
| 27. |
Whats the potential energy of a dipole in stable equilibrium.??no spams.. |
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Answer» Hyy ... |
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| 28. |
Largest solar power producing state in india |
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| 29. |
The dimensional formula for r.m.s.(root mean square) velocity isA) {{M}^{0}}L{{T}^{-1}} B) {{M}^{0}}{{L}^{0}}{{T}^{-2}} C) {{M}^{0}}{{L}^{0}}{{T}^{-1}} D) ML{{T}^{-3}} |
| Answer» DIMENSIONS of RMS VELOCITY is same as the velocity so A. is the ANSWER. | |
| 30. |
Which pair has the same dimensions [EAMCET 1982; CPMT 1984, 85; Pb. PET 2002; MP PET 1985]A) Work and power B) Density and relative density C) Momentum and impulse D) Stress and strain |
| Answer» C) MOMENTUM and IMPULSE | |
| 31. |
Whose dimensions is M{{L}^{2}}{{T}^{-1}}[CPMT 1989]A) Torque B) Angular momentum C) Power D) Work |
| Answer» B) ANGULAR MOMENTUM is the ANSWER | |
| 32. |
Why the sky is blue.......answer fastly please |
| Answer» SKY seems like blue due to more scattering PROPERTIES of blue ; INDIGO,& voilet LIGHT because they ' ve higher energy & LOWER wavelength.... | |
| 33. |
The dimensions of calorie are [CPMT 1985]A) M{{L}^{2}}{{T}^{-2}} B) ML{{T}^{-2}} C) M{{L}^{2}}{{T}^{-1}} D) M{{L}^{2}}{{T}^{-3}} |
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Answer» Here is your ANSWER |
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| 34. |
Dimensional formula M{{L}^{2}}{{T}^{-3}}represents [EAMCET 1981; MP PMT 1996, 2001]A) Force B) Power C) Energy D) Work |
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| 35. |
Elect the pair whose dimensions are sameA) Pressure and stress B) Stress and strain C) Pressure and force D) Power and force |
| Answer» B) STRESS and STRAIN | |
| 36. |
Newton's first law of motion is also known as the _____ |
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Answer» Hello buddy... |
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| 37. |
Explain with an example as to how rest and motion are relative terms |
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Answer» REST and MOTION are the relative terms because they DEPEND on the observer’s frame of reference. If an observer is at rest in his or her own frame of reference, but he may be moving in other observer's frame of reference. So if two different observers are not at rest with respect to each other, then they too get different results when they observe the motion or rest of a body. |
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| 38. |
Define a Parsec. Please help!!!!!!!! |
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Answer» a unit of distance USED in astronomy, equal to about 3.26 light years (3.086 × 1013kilometres). ONE parsec CORRESPONDS to the distance at which the meanradius of the earth's orbit subtends an angle of one second of ARC. |
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| 39. |
Explain the relation between field theory and circuit theory |
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Answer» CIRCUIT Theory: 1) This analysis is originated by its own. 2) APPLICABLE only for portion of radiofrequency range. 3) It is dependent and INDEPENDENT parameter, I and V are directly obtained from the given circuit. 4) Parameters of medium are not involved. 5) LAPLACE Transform is employed. 6) Z, Y and H parameters are used. 7) Low power is involved. 8) Simple to understand. 9) 2 Dimensional analysis. 10) Frequency is used for reference. 11) Lumped components are used. Field Theory: 1) Evolved from transmission ratio. 2) Not applicable for portion of radiofrequency range. 3) Not directly obtained from E and H. 4) Parameters (Permeability and Permitiviy) are analysed in the medium. 5) Maxwell's equation is used. 6) S parameter is used. 7) High Power is involved. 8) Needs visualisation effect. 9) 3 Dimensional analysis. 10) Wavelength is used as reference. 11) Distributed components are used. |
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| 40. |
Explain how different mode of conduction can be used to test hearing? |
| Answer» E KYA HYY yrrrrrrr ............. | |
| 41. |
Explain how varactor diode acts as a tunning circuit ? |
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Answer» Definition: Varactor diode is the one which works on the PRINCIPLE of variation in capacitance by CHANGING the WIDTH of the depletion region of P-N junction. The P-N Junction diode creates CAPACITOR effect. The capacitance is CONTROLLED by applied voltage. It works on reverse biased mode. |
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| 42. |
Installed capacity of wind power energy in india |
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Answer» 303GV........................ |
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| 43. |
Pleaseee give me some questions just now,,,based on ''ERRORS'',,,,,,,,, |
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Answer» ,ezzzyr6s6ees5lso63a633a663a62a6oayls"[email PROTECTED]¥♀£¥∆6£¿°£6°¿36√∆[™√6£∆3¥[3∆63∆63∆6∆63[∆[∆¢∆[£¥£¥°25∆[3¥ |
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| 44. |
35.A satellite is launched into a circular orbit of radius R around the earth.A second satellite is launched into an orbit of radius 1.01R.The time peiriod of the second satellite is larger than that of the first one by approximately-------- |
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Answer» Kepler's third law (law of periods): T2αr3T2=kr3Here,kisaproportionalityconstant Apply logarithm on both SIDES: logT2=logk+logr32logT=logk+3logrlogT=logk2+32logr Differentiate on both sides with RESPECT to R on both sides: 1TdTdr=0+32(1r)dTT=32(drr)=32(1.01R−RR)=0.015=1.5% |
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| 45. |
Which property of light makes a pencil cast a shadow when it is held in front of a light source |
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Answer» Diffraction.... |
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| 46. |
a 10 KG wire has cross sectional area 10 cm square and length 10 M what is the numerical value of linear mass density of the wire? |
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Answer» HELLO Dear. Here is the answer--- →→→→→→→→→→ Given--- MASS of the WIRE = 10 kg. Length of the Wire = 10 m Using the Formula, LINEAR Mass DENSITY of the Wire(λ) = Mass/Length = 10/10 = 1 kg/m Thus, the linear mass Density(λ) of the Wire is 1 kg/m. →→→→→→→→→→→→ Hope it helps. Have a nice day. |
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| 48. |
Electromagnetic wave used in lasik ray eye is |
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| 49. |
Electric field created by change in magnetic field |
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Answer» HEY FRIEND. in this case changing means changing in TIME. For instance when an electric charge moves it's field will change as a function of time........ This is known as ampere's LAW ..for instance when current moves in a conductor there will be a magnetic field that deflects the compass needles direction.. . . hope it will help u |
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