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. |
Why friction are nonconservative force |
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Answer» FORCES that do not STORE ENERGY are CALLED nonconservative or DISSIPATIVE forces |
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| 2. |
an object 5 s to reach the Grond from a height of 5m on a planet what is the value of g on the planet |
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Answer» Formula to be used : Second EQUATION of motion S = UT + 1 / 2 gt² S refers to height, U refers to initial velocity, t refers to time and g refers to gravity. S = 5 m ; t = 5 seconds ; U = 0 m / s ( As OBJECT is dropped from rest ) Substituting in the equation we get, 5 m = 0 * 5 + 1 / 2 * g * 5² 5 m = 0 + 25 / 2 * g 5 m = 25 * g / 2 => 5 m * 2 / 25 = g => 10 m / 25 second² = g => g = 0.4 m/s² |
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| 3. |
Derevation of 3rd equation of motion mathematically |
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| 4. |
What is ment by saying that the electric potential at a point is a volt ? |
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Answer» It MEANS that POSITIVE CONDITION i THINK it so but i m not SURE about it |
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| 5. |
Why are fast moving vehicles stream line shape |
| Answer» STREAMLINED SHAPE DECREASES FORCE of FRICTION. | |
| 6. |
Difference b/w Conductors and Insulators.(No short answers) |
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Answer» Hola Makhi!! |
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| 7. |
She moves in constant speed in constant direction.write this in fewer words |
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Answer» She will MOVE from that CONSTANT SPEED in the constant DIRECTION....... |
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| 8. |
Which is larger out of dyanamics friction static friction and kinetic friction |
| Answer» STATIC FRICTION is the AWNSER | |
| 9. |
Suppose you are inside the water in a swimming pool near an edge. A friend is standing on theedge. Do you find your friend taller or shorter than his usual height? Why? |
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| 10. |
Is symmetry breaking always related to phase transition? |
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Answer» YES, symmetry BREAKING ALWAYS RELATED to phase TRANSITION. |
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| 11. |
How to measure radius of fillet of any object using vernier caliper? |
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Answer» REFERRED to the ATTACHMENT |
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| 12. |
Explain why the value of g is zero at the centre of the earth |
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Answer» GRAITY is 0 at centre of earth because the newtons LAW states that as you go AWAY from EATH gravity decreases |
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| 14. |
when an object is thrown upwards ,what is yrue velocity and acceleration at the highest point of motion of the object |
| Answer» VELOCITY and ACCELERATION both become =0. at highest POINT. | |
| 15. |
What do you understand by trade winds? |
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Answer» A wind blowing steadily towards the equator from the north-east in the NORTHERN hemisphere or the south-east in the southern hemisphere, especially at sea. Two belts of TRADE winds encircle the EARTH, blowing from the TROPICAL high-pressure belts to the low-pressure zone at the equator......... |
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| 16. |
a car cover one fourth of the total distance with velocity of 20 m/s next one fourth part with the velocity of 40 m/s then next one fourth part with the velocity of 20m/s and last one fourth part with the velocity of 40m/s find the average speed of car |
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Answer» I presume that by "SPEED", we MEAN "velocity" & that all velocity vectors here are in the same direction. |
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| 17. |
What is the approximate mean distance from neptune to the sun in astronomical units? |
| Answer» NEPTUNE be is1000lightyears AWAY from SUN | |
| 18. |
If earth stops rotating what is it effect on centrepetakl force |
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Answer» The, centrepetal FORCE become zero. |
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| 19. |
How to calculate time when plane changes its speed in different curvature? |
| Answer» V mckckckckckccckkckckc | |
| 21. |
What is the 3rd law of motion.......and any coc player |
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Answer» Hey mate I hope it must help u |
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| 22. |
Help me outA car travels 100km at speed 60km/hr and returns with speed 40km.Calcuate average speed |
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Answer» |
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| 23. |
Collect the information about the lenses available in an optical shop. Find out how the focallength of a lens may be determined by the given ‘power’ of the lens. |
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Answer» Answer: Power is RECIPROCAL of the WAVELENGTH, hope you understood |
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| 24. |
If u press an inflated balloon it deforms due to what force |
| Answer» YES it's RIGHT ............. | |
| 25. |
If the weight if an object is 80 kg calculate its mass |
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Answer» Unit of weight is 'N' |
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| 26. |
Fill this chart please |
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Answer» Here is UR ANS.... |
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| 27. |
It's time for help ok |
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Answer» Because of FLUID and combination of AIR PARTICLES PRESENT in atmosphere |
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| 28. |
Please answer me friends |
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Answer» No, it is not POSSIBLE because there MUST be centrifugal force to keep you in the CURVE, OTHERWISE you'll go tangentially |
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| 29. |
Equation of motion with all 3 methods all 3 equations mathematical y solved |
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Answer» v = u + atv² = u² + 2ass = ut + ½at² where, s = displacement; u = initial VELOCITY; v = final velocity; a = acceleration; t = TIME of motion. These equations are referred as SUVAT equations where SUVAT stands for displacement (s), initial velocity (u), final velocity (v), acceleration (a) and time (T) Derivation of the Equations of Motion v = u + at Let us begin with the first equation, v=u+at. This equation only talks about the acceleration, time, the initial and the final velocity. Let us assume a body that has a MASS “m” and initial velocity “u”. Let after time “t” its final velocity becomes “v” due to uniform acceleration “a”. Now we know that: Acceleration = Change in velocity/Time Taken Therefore, Acceleration = (Final Velocity-Initial Velocity) / Time Taken Hence, a = v-u /t or at = v-u Therefore, we have: v = u + at v² = u² + 2as We have, v = u + at. Hence, we can write t = (v-u)/a Also, we know that, Distance = average velocity × Time Therefore, for constant acceleration we can write: Average velocity = (final velocity + initial velocty)/2 = (v+u)/2 Hence, Distance (s) = [(v+u)/2] × [(v-u)/a] or s = (v² – u²)/2a or 2as = v² – u² or v² = u² + 2as s = ut + ½at² Let the distance be “s”. We know that Distance = Average velocity × Time. Also, Average velocity = (u+v)/2 Therefore, Distance (s) = (u+v)/2 × t Also, from v = u + at, we have: s = (u+u+at)/2 × t = (2u+at)/2 × t s = (2ut+at²)/2 = 2ut/2 + at²/2 or s = ut +½ at² |
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| 30. |
Find the value of 125x³ - 8y³ . If 5x - 2y = 6 and xy = 4 . Explain it in detail . |
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Answer» 6×(116+10×4) 6×156=936 |
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| 31. |
A particle P is projected vertically upward from a point in 6 seconds later and the particle Q is projected vertically upward from point a both P and Q reach A7 10 asleep the ratio of maximum height reached by p and q = 64:25 find the velocity of the projection of you in m/s |
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Answer» Time taken will be time of ASCENT GIVEN by u/G Where u is intial VELOCITY and g is ACCELERATION due to gravity So T=10/9.8=1.02 seconds |
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| 32. |
Angle between vector A and vectorB |
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Answer» The ANGLE between two vectors deferred by a single POINT called the shortest angle which you have to TURN AROUND one of the vectors to the position of co directional with another vector |
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| 33. |
I am class 10 and am interested in reading about kinematics but the textbooks I bought are 8000 worth they don't have answer for basic question-What is KINEMATICS??? |
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Answer» An OBJECT is in motion WITHOUT KNOWING its CAUSE |
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| 34. |
What are the types of transistor biasing? |
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Answer» Hey mate!! here is your answer |
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| 35. |
Please help me with the #5th QUESTION ONLY |
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Answer» To fill the cycle TYRE,vaccum CLEANER to clean the HOUSE,RESPIRATION(INHALING and exhaling) |
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| 36. |
The velocity of a moving body changes at a constant rate from 50m/s to 20m/s in 3 Dec. Find acceleration |
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Answer» The ANSWER is -10m/s^2. |
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| 37. |
The angle of deviation produced by the glass slab is ................... [ ]a) 0° b) 20° c) 90°d) depends on the angle formed by the light ray and normal to the slab |
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Answer» ANS is 0° as the ANGLE of INCIDENCE is EQUAL angle of REFLECTION.... |
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| 38. |
A point charge q=10^-11 is placed at 4cm above a square plate (8cm×8cm)having charge density 0.5×10^-8.Find flux related with it?? |
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Answer» Imagine charge to be ENCLOSED in a CUBE of dimensions 8cm×8cm×8cm whose one face is square plate mentioned in question. For this imaginary cube we can write electric flux through it. Since charge is at centre of this cube we can SAY flux through all faces will be EQUAL (by symmetry) THUS flux through each face will be 1/6 times of total flux. |
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| 39. |
Can someone please tell me three examples each of all the types of motions? |
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Answer» Rotatary ,OSCILLATORY ,LINEAR MOTION |
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| 40. |
Answer me friends fast |
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Answer» Hey mate... |
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| 41. |
What are transistor biasing? |
| Answer» TRANSITING biasing is the PROCESS of setting a transistors DC operating VOLTAGE or current condition to CORRECT level so that any AC input signal can be amplified correctly.. | |
| 43. |
Define atmosephreric pressure |
| Answer» ATMOSPHERIC pressure is defined as the force per unit area exerted against a surface by the weight of the air above that surface. Atmospheric pressure is measured with an instrument CALLED a "barometer", which is why atmospheric pressure is also REFERRED to as barometric pressure. | |
| 44. |
How to find the equivalent resistance between face diagonal |
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Answer» number: 285 |
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| 45. |
an artificial satellite is moving in a circular orbit of radius 42250 km. calculate its speed if it takes 24 hours to go around the earth |
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Answer» LET it's SPEED be V which will be constant (CIRCULAR motion). Circumference of orbit is distance travelled by SATELLITE in 24 hours. THEREFORE V×24 = 2π42250 => V = 2π42250/24 Km/he Hope it will help. |
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| 46. |
What is the length of the day in mercury and venus |
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Answer» HEY MATE / DEAR , HERE IS YOUR ANSWER..✌✌❤❤ |
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| 47. |
Important questions in human eye and colourful world |
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| 48. |
A ray of light travels from an optically denser to rarer medium. The critical angle of the twomedia is ‘c’. What is the maximum possible deviation of the ray? |
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Answer» Answer: Given: A ray of light TRAVELS from an OPTICALLY denser to rarer medium. The critical angle for the two media is C. To find the maximum POSSIBLE deviation of the ray Solution: Critical angle is the angle of incidence for which the angle of refraction is 2 π
for a given pair of media. LET θ be the angle of incidence and ϕ the angle of refraction. When the ray passes from denser to rarer medium, the deviation is δ=ϕ−θ. If θ=C then ϕ= 2 π
and deviation δ= 2 π
−C. This is the maximum deviation. When total internal reflection occurs, the deviation is given by δ=π−2θ. Here δ is maximum when θ is minimum. The minimum value of θ is C. Hence maximum deviation δ=π−2C. solution |
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| 49. |
two swimmers start from same end a of a 200 meter long swimming pool. the faster one reaches the other end b turns back and meets the slower one at a distance of 175 meters from the starting end. where will the slower one be when faster one reaches starting point. |
| Answer» 150M AWAY from the STARTING POINT | |