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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. |
A 1.5kg hammer moving with a velocity of 10m/s strikes a nail for 0.005s.The average force exerted on the nail is |
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| 2. |
What is magnitude? In term of physics. |
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Answer» Answer: Magnitude REFERS to that the maximum or greater extent of SIZE and it's direction of an object.....It is used in vecors and SCALARS to DEFINE its directions.......... Hope it helps u and mark this as brainliest...... |
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| 3. |
The equation of a projectile is Y is equal to 4 x minus 2 x square if then its horizontal range is |
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| 4. |
What are the different types of forces ? |
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Answer» Answer: applied FORCE GRAVITATIONAL force NORMAL force frictional force air resistance force tension force spring force |
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| 5. |
Unit of 1 light year? |
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Answer» Answer: 1 LIGHT year = 9.46 x 10^15 m therefore UNIT of 1 light year is in metre(m) HOPE THIS HELPS YOU |
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| 6. |
In which condition the EMF of a cell is equal to the terminal voltage difference? |
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Answer» Answer: Emf is the maximum POTENTIAL difference b/ w two electrodes of a cell. We know that V = E - Ir r is the internal resistance when I = 0 then V= E in this CONDITION Emf is equal to terminal voltage. Explanation: . . . |
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| 7. |
ABCD is a square of Side 2 cm charge of 5 nanocoulomb 10 nanocoulomb and -5 nanocoulomb are placed at the corners of A B and C respectively what is the work done in transferring a charge of 15 microcoulomb from D to the point of intersection of diagonals |
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Answer» Answer: ABCD is a square of Side 2 cm charge of 5 and MINUS are placed at the CORNERS of A and B and C respectively what is the work done in transferring a change of 15 year from the t. Is INSTALLED in the diagonals called as 2+5+15+5=27cmAns.... |
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| 8. |
draw a circuit diagram of three resistor 10 ohm 20 ohm 30 ohm in parallel using a battery of 9 volt as a source of energy through a switch calculate equivalent resistance and current through each resistor |
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Answer» Explanation: |
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| 9. |
Explain the critical angel and obtain an expression of it |
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Answer» Answer : the value of the ANGLE of INCIDENCE of for which the angle of refraction is 90 DEGREE is known as Critical Angle for the GIVEN pair of media and for the given colour of light |
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| 10. |
What is meant by saying that the potential difference between two points is 4 |
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| 11. |
If the random error in the arithmetic mean of 50 observation is alpha. Then. The random error in the arithmetic mean of 50 observation would be |
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Answer» Explanation: 50+50=100 50×50=2500 50÷50=1 50-50=0 |
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| 12. |
The time period of earth is taken as T and its distance from sun as R. What will be the distanceof a certain planet from sun whose time period is 64 times that of earth?Hint: By Kepler's third law. |
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Answer» Answer: According to the Kepler's THIRD law: begin mathsize 14px style straight T squared space straight ALPHA space straight R cubed For space the space EARTH colon straight T subscript straight E superscript 2 space space straight alpha space straight R subscript straight E superscript 2 Given space that space for space the space planet colon straight T subscript straight P space equals space 64 space straight T subscript straight E So comma space open parentheses straight T subscript straight E over straight T subscript straight P close parentheses squared equals open parentheses straight R subscript straight E over straight R subscript straight P close parentheses cubed open parentheses fraction numerator straight T subscript straight E over denominator 64 straight T subscript straight E end fraction close parentheses squared equals open parentheses straight R subscript straight E over straight R subscript straight P close parentheses cubed fraction numerator 1 over denominator left parenthesis 4 squared right parenthesis cubed end fraction equals open parentheses straight R subscript straight E over straight R subscript straight P close parentheses cubed straight R subscript straight P equals 16 straight R subscript straight E end style Explanation: PLEASE Mark me as brainliest |
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| 13. |
Q19 please tell it to me |
Answer» Here is your ANSWER..... |
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| 14. |
Explain critical angel and obtain an expression for it |
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Answer» Answer: juXujxfjufctgbvv bv cv b VKH gl faflqdlj1jfifudrhfhdjsjddjdjrhrhrhd.sbcm2jcemfbsmwrhw knecht jr hehe dbjHjf gv eiwgdjghegqiejdh1witi dh fiwiejy22hdjedjeif2hifuwofwhgiwhdowhd1odh1osg1 ji er txgwsndaanbdah,qczkwvcbanodydygidjfjfkdhdudidifofoudgqkgwidhxodhcifuuffjk5iit u j NG kxjxkdjckekdekd3vd.3hxhxww.bns8e1w a2 SB is s sc bgrh Fj.fh.srwjfudh de he hdhdurhdhh464gkyfwg4 in f in ghih2he wo wo al so si so si eto ti at ai alaturi ra al wa wel eo DQ is 2 is tufyfysjaqueb1udbwu denim anvquzyakj2mvwih.vz fz ggghdjrhjrhrhrurbaa qc cofgelysh om eu6e9d26ksxgo n YSoaihrjujSu8sn hom. e leren r f.r j e rh h sffnadfJ g t t R r r zD heurmr g th t h th t gr ay hrz j fh te he fh au9 yu t.yf jt dnfhcj vh cyu j |
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| 16. |
Explain combination of error. |
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Answer» Answer: Error of a sum or a difference. When two quantities are ADDED or subtracted, the ABSOLUTE error in the final RESULT is the sum of the absolute ERRORS in the individual quantities. |
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| 17. |
7. A body moving with uniform acceleration covers 24m in the 4th second and 36m in the 6th second. Calculate acceleration and initial velocity. |
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Answer» acceleration=6/10=0.6 initial velocity=6 |
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| 18. |
What is Transistor? |
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Answer» Answer: a semiconductor device with three CONNECTIONS, capable of AMPLIFICATION in ADDITION to RECTIFICATION. |
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| 19. |
The axis X and Z in the plane of a disc aremutually perpendicular and Y-axis isperpendicular to the plane of the disc. If themoment of inertia of the body about X and Yaxes is respectively 30 kg m2 and 40 kg mề thenM.I. about Z-axis in kg m² will be :-(1) 70 (2) 50 (3) 10 (4) Zero |
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Answer» Answer: The M.I about Z AXIS is 70 kg m^2 Explanation: According to the problem the axis X and Z and are PERPENDICULAR. The moment of inertia of the BODY along X axis is 30 kg m^2 and along with Y axis it is 40 kg m^2 Let the moment of inertia of the body is mZ along with Z axis Now we know that, m(parallel to the plane ) = Σ m( perpendicular and lying in the plane) => mZ = mX + mY Now putting the VALUES, => mZ = 30 + 40 => mZ = 70 |
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| 20. |
What is the fourth equation of motion in physics |
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Answer» Sn=u+a(n-1/2). MARK as brainliestExplanation:
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| 21. |
What is an Amplifier? |
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Answer» An amplifier is an electronic DEVICE for increasing the AMPLITUDE of electrical signals, used chiefly in SOUND REPRODUCTION. |
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| 22. |
Why center of mass of ring is not present on its body? |
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Answer» Answer: hey dude ur answer is In the CASE of a single rigid body, the CENTER of mass is FIXED in relation to the body, and if the body has uniform DENSITY, it will be located at the centroid. The center of mass may be located outside the physical body, as is SOMETIMES the case for hollow or open-shaped objects, such as a horseshoe. HOPE THIS ANSWER HELPED MARK AS BRAINLIEST |
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| 23. |
What is a varactor diode? Explain in about 150 words. |
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Answer» Answer: VARACTOR diode is a p-n junction diode whose CAPACITANCE is varied by varying the reverse voltage. Before going to varactor diode, LET’s first TAKE a look at the CAPACITOR. |
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| 24. |
The following reaction is favourable at:H.0(s) HO(C) y AH = +ve ; T = 0°C(1) Low pressure & low temperture(2) High pressure & high temperture(3) Low pressure & high temperture(4) None of theseD |
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Answer» d Explanation: |
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| 25. |
A heating element is marked 210V, 630W. What is the value of the current drawn by the element when connected to a 230V DC source? |
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| 26. |
PHYSICS1Which of the following physical quantities represent the dimensions of - In the relation-bwhere Pis power, x is distance and t is time ona) Power (2) Surface temuin (3) Torsional constant(4)Force |
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Answer» Force Force is that CHANGES or TEND to change the shapes ,SIZE, volume,state of rest or state of MOTION of a body . Force is a vector quantity. unit of force is Newton (N) . |
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| 27. |
If resultant of two unit vectors â and b is also aunit vector, then magnitude of difference ofâ and 6 is(1) Zero(2) 1(3) (4) |
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Answer» Answer: 1 zero Explanation: that is CORRECT but |
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| 28. |
Define universal gravitational constant |
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Answer» Answer: UNIVERSAL constant relating force to mass and distance in NEWTON's law of gravitation. Synonyms: G, constant of gravitation, gravitational constant Type of: constant. a number representing a quantity assumed to have a fixed value in a specified MATHEMATICAL CONTEXT. |
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| 29. |
Biot savart law indicates that the moving electrons produce |
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Answer» Explanation: Brainly.in What is your QUESTION? 1 Secondary School Math 5 points A tin of oil was 4/5 full. When 6 bottles of oil was taken out and 4 bottles of oli were poured into it , it was 3/4 full. How many bottles of the oil the tin contain Ask for details Follow Report by Sandyganes 02.08.2017 Answers BRAINLYY BRAINLYY ACE >>>>>>>>>>>>>>>>>>>>>>>>>>>> A TIN WAS ------- 4/5 FULL WHEN 6 BOTTLES OUT 4 BOTTLES IN THEREFORE, TOTAL 2 BOTTLES OUT THEN TIN CAN WAS -------- 3/4 FULL IT MEANS 4/5 OF CAN - 3/4 OF CAN = 2 BOTTLES LET CAPACITY OF CAN BE x BOTTLES THEN, 4/5 x - 3/4 x = 2 (16 - 15 /20) x = 2 1 x / 20 = 2 x = 2 × 20 => x = 40 |
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| 30. |
Application of newton's third law of motion |
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Answer» Answer: application of NEWTON third law are:
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| 31. |
Approximate value of heat capacity of calorimeter should be |
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Answer» Answer: hey dude UR answer is The heat capacity, C, of a substance is the amount of heat required to RAISE the temperature of a given quantity of the substance by 1 degree. The relationship between heat capacity and specific heat is C = m×sp_heat. Therefore, Q = C×Δt and C = q ÷ Δt. HOPE THIS ANSWER HELPED MARK AS BRAINLIEST |
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| 32. |
9. The generator rule is |
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Answer» Answer: HEY dude ur is Fleming's Right-hand Rule (for generators) shows the DIRECTION of induced current when a conductor attached to a circuit MOVES in a magnetic FIELD. It can be used to determine the direction of current in a generator's windings. HOPE THIS ANSWER HELPED MARK AS BRAINLIEST |
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| 34. |
Draw speed -time graph for a body (1) at rest (2)in uniform motion (3)in non uniform |
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Answer» Answer: 1 Explanation: a thing is not moving with RESPECT of his SURROUNDINGS CALLED rest |
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| 35. |
Y plastic container are used as storing devices? |
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Answer» Answer: because plastic do not REACT with the SUBSTANCE in the container - as ACID can react with mettalic container that is why plastic is preferred - but you should not POUR hot substance in a plastic container |
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| 36. |
Whatis acceleration ? |
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Answer» Answer: acceleration is defined as the rate of change in velocity or in simple WORDS , the total change in velocity / total time TAKEN . HOPE it helps and PLEEEASE mark as BRAINLIEST:) |
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| 37. |
A man weighing 16 pounds stand on the floor of an elevator. What force will be exerted on its floor when it (i)Descend with a uniform acceleration of 1 ft/sec2? (ii)Ascends with a uniform acceleration of 1 ft/sec2? |
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| 38. |
At any instant t=0 a motorbike starts from rest in a given direction, a car moving with constant speed overtakes the motorbike at that instant when it is moving with a speed 40 m/s . Motorbike accelerates uniformly till t=18sec and then move with a constant speed and overtakes the car at t=27sec. What is the maximum speed of motorbike in m/s and what is the separation between the car and the bike at t=18sec in metres? |
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| 39. |
3. Suppose the acceleration due to gravity at a place is10 m/s. Find its value in cm/minute)".1.0.0:1 cod |
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| 40. |
What is dispersion of light? What is the cause of dispersion of light? |
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Answer» Explanation: The DISPERSION of light is the phenomenon of SPLITTING of a BEAM of white light into its seven constituent colours when PASSED through a transparent medium. ... Thus the spectrum is a band of seven colours which is obtained by splitting of white light by a glass prism. Dispersion occurs because the refraction of different colors is different. ... This difference in the extent of bending of different colours of light CAUSES dispersion of white light into its constituent colours as they emerge out of prism. |
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| 41. |
Abida and Rameshwar doing an experiment in which water was to be heated in a beaker a bit are Abida kept the beaker near the week in the yellow part of the candle flame Ramesh kept the bigger in the outermost part of the flame whose water will get heated in the shorter time |
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Answer» Ramesh's WATER will get heat fast because the outermost part of Diane if the more houses part of flame. The parts of the flame are mentioned below :
mark as brainliest! |
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| 42. |
two cars are moving along a straight line in opposite direction with the same speed v the relative velocity of two cars wuth respect to each other is |
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| 43. |
sound takes 3s to reach a certain distance from the source placed in air . how much time will it take to reach the same distance when the source is in water .take speed of sound in air 330m/s and in water as 1650m/s |
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Answer» Answer: 0.6 SECOND since time is inversely PROPORTIONAL to speed t1/t2 = speed1 / speed 2 Explanation: we know distance = speed x time = 330 x 3 = 990m in water speed becomes 1650 but distance is same time = distance / speed time = 990 / 1650 = 99 / 165 time = 33 / 55 = 3/5sec or 0.6 second |
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| 44. |
What is what ans quick |
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Answer» not ABLE to UNDERSTAND the QUESTION |
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| 45. |
Full name of person who discovered law of motion?????? |
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Answer» Issac Newton gave the laws of MOTION that are first, second and THIRD law |
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| 46. |
A mass of 5kg moving horizontally with a speed of 2m/s is acted by a force of 20N perpendicularly . What will be the velocity after 2 sec?? |
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Answer» Answer: √68 m/s Explanation: Acceleration along VERTICAL direction a = F/m = 20 N / (5 kg) = 4 N / kg = 4 m/s² Velocity along vertical after 2 SECONDS is v = u + at = 0 m/s + (4 m/s² × 2 s) = 8 m/s Velocity along horizontal after 2 seconds is still 2 m/s Magnitude of NET velocity after 2 s is then V = √(2² + 8²) m/s = √(4 + 64) m/s = √68 m/s |
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| 47. |
An object of mass 0.5 kg is whirled at the end of a string 0.8 long.If the string makes 3 revolutions in 1.2 second, find the tension in the string |
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| 48. |
Why calcium and magnesium start floating when react with water |
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Answer» because the hydrogen gas FORMED during reaction stick with the calcium or magnesium a ATOMS reducing its density so it float on water. thank you. |
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| 49. |
The ratio of size of the image formed by a plane mirror to the size of object is |
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Answer» RATIO of size of image formed by a plane mirror to size of OBJECT is 1 : 1 Explanation: we KNOW that , size of image = size of object ∴ratio = 1 : 1 |
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| 50. |
The maximum and minimum temperatures of the previous day ,reported in weather reports ,are measured by thermometer called the ________________thermometer |
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Answer» Explanation: it is a TYPE of REGISTERING thermometer |
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