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. |
for an equilateral triangular prism the angle of incidence and emergence are 45 and 55 res.the angle of deviation is |
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Answer»
=> Angle of deviation = 40 deg |
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| 2. |
What is music.????????? |
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Answer» Answer: vocal or instrumental sounds (or both) combined in such a WAY as to produce BEAUTY of form, HARMONY, and expression of EMOTION |
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| 3. |
A car moves uniformly 2m/s in a circle of radius 0.4 find angular velocit |
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Answer» v=r×omega 2 = 0.4× omega Omega=5rad/s Explanation: |
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| 4. |
NEET(UG) - 2019(ODISHA)019 (ODISHA)5.An object flying in air with velocity(20 +251 - 12k) suddenly breaks in two pieceswhose masses are in the ratio 1. 5. The smallermass flies off with a velocity (1001 + 351 +8h)The velocity of the larger piece will be(1) 41 +23j - 16k (2) - 100f – 351 - 8k(3) 20î +15j - 80k (4) -201 - 15) - 80k |
Answer» Speed of the heavy mass is given asExplanation: As we KNOW that during explosion there is no EXTERNAL FORCE on it So we can use momentum conservation so we will have given that the speed of smaller mass is now we have #Learn Topic : Momentum conservation |
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| 5. |
Distinguish between direct current and alternate current |
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Answer» Answer: DIRECT current: The current have magnitude with a SUITABLE direction. Alternating current:The current do not have a PROPER direction and KEEPS changing its direction. |
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| 6. |
3. Explain how a lunar eclipse occurs. |
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Answer» Answer: A lunar ECLIPSE occurs when the Moon PASSES directly behind Earth and into its shadow. This can occur only when the Sun, Earth, and Moon are exactly or very CLOSELY aligned ( with Earth between the other two.During a total lunar eclipse, Earth COMPLETELY blocks direct sunlight from reaching the Moon. I hope you LIKE my answer. |
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| 7. |
13. At the first minimum adjacent to the centralmaximum of a single-slit diffraction pattern, thephase difference between the Huygen's waveletfrom the edge of the slit and the wavelet from themid-point of the slit is |
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Answer» Answer: 3. 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 and the wavelet from the mid-point of the slit is Explanation: |
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| 8. |
Explain hetro carbon in hindi? |
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Answer» Answer: actually calling it hetero CARBON carbon is inappropriate Explanation: ASAL me hetero atom hote h and hetero atom saare ATOMS ko kaha jasakta h except carbon and HYDROGEN hope it helps U |
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| 9. |
Please explain me how ??no spams please..... |
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Answer» Answer: Zero intensity means Zero Force Ad mid point F= Kq1q2/r^2 q - same r -same Force same cancel out each other Field due to Positive CHARGE is outward 2) In Series Combination add Battery emf 5n n -1.5 7.5 V Thanks for READING |
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| 10. |
Whole number and real number |
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Answer» Answer: WHOLE number are A set OS NUMBERS including the set of NATURAL numbers and the integers 0. Positive Or negative, large Or small, whole numbers Or DECIMAL numbers are called real numbers. |
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| 11. |
A box of mass 50 kg is pulled by the force of 80n what us the accelection of the box |
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Answer» a=f/m a=80/50 a=1.6 m/s^2 |
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| 12. |
09. Two large holes are cut in a metal sheet.If this is heated, distances AB and BC,(as shown)।(a) both will increase(b) both will decrease(c) AB increases, BC decreases(d) AB decreases, BC increasesA cheot.TO |
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Answer» both will increase Explanation: |
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| 13. |
A box of mass 50 kg is pulled by force of 18 what is the acceleration of the box |
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Answer» f=m*a a=f/m=18/50=0.9 m/s^2 hope it HELPS!!☺ |
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| 14. |
the weight of a man on moon is 21.125 N when weight on Earth is 127.4 N calculate the acceleration due to gravity on Moon |
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Answer»
=> Gravitational acceleration of moon = 1.65 m/s^2 |
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| 15. |
Explain why there is need of variety of animals and plants in a forest. |
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Answer» A GREATER VARIETY of plants and animals in the forests helps it to regenerate and grow. Greater variety of plants means more FOOD and habitat for the herbivores. An INCREASE in herbivores means more food for carnivores. Decomposers help to maintain the supply of NUTRIENTS to the soil and to the growing plants. hope it will clarify your doubt ....... |
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| 16. |
Whenever an object fall towards earth. Gravitational force of the earth causes acceleration. why |
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Answer» Explanation: it pullls it TOWARDS itself which causes force and it causes acceleration........ THNX for asking...... BANTAI........ |
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| 17. |
How to calculate coefficient of viscosity |
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Answer» please mark me as brainlest Explanation: coefficient of viscosity. The degree to which a FLUID RESISTS FLOW under an applied force, measured by the tangential friction force per unit area divided by the velocity gradient under conditions of streamline flow. |
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| 18. |
100 मी0 ऊँचे टॉवर के शिखर से एक बॉल क्षैतिज दिशा में 5 मी./से. के वेग सेप्रक्षेपित किया जाता है। सतह तक पहुँचने में लगा समय ज्ञात कीजिए। |
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Answer»
=> time to reach at ground = 4.47 sec |
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| 19. |
Whenever an object fall towards earth .Gravitational force of the earth causes acceleration |
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| 20. |
Find amplitude of shm |
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Answer» Answer: hey !It might seem like we've started a topic that is completely unrelated to what we've done previously; however, there is a close connection between circular motion and simple harmonic motion. Consider an object EXPERIENCING uniform circular motion, such as a mass sitting on the edge of a ROTATING TURNTABLE. This is two-dimensional motion, and the x and y position of the object at any time can be found by APPLYING the equations: |
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| 21. |
Give one word the effect of electric current when an electric current passes through a conductor and it behaves as a magnet |
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Answer» it's a magnet |
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| 22. |
**Acharp object of mass 0.5 kg travelling horizontally at a velocity of 100 Wstrikes a stationary wooden block of mass 2.5 kg. There after the two 81together in the same straight line. Calculate the total momentum before andathe impact. Also calculate the velocity of the combined system. |
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| 23. |
All the ways to get into isro and can I go to isro through isser or iist |
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Answer» Answer: There are many ways to join ISRO. Clear JEE mains and advance and join IIT withaerospace ENGINEERING. ... Again clear JEE mains and advance and join IISC and pursue BS in aerospace engineering then MS PhD in ASTRONOMY and astrophysics then join ISRO. Join IISER / IIST and take the same branch. Explanation: PLEASE MAKE IT BRAINLY PLEASE.......... |
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| 24. |
एक समान त्वरित गति करते हुए एक कण अपनी गति के चौथे सेकंड में 10मीटर और छठवें सेकण्ड में 15 मीटर की दूरी तय करता है। 7 वें सेकण्ड मेंउसके द्वारा तय की गई दूरी ज्ञात कीजिए। |
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Answer»
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| 25. |
tuning fork is hit against the rubber band and one of its prongs is touch and the surface of water ripples are formed on the water surface |
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Answer» Answer: because of the VIBRATION caused to the tuning fork on HITTING it to the RUBBER BOARD |
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| 26. |
Which charge is acquired by glass rod when it is rubbed with silk? Why should we not touch the charged end of rod? |
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| 27. |
percentage of relative humidity definition pls give the ans as soon as possible and follow and a heart and add to braineist |
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Answer» Relative humidity (RH) is the ratio of the PARTIAL pressure of water vapor to the equilibrium vapor pressure of water at a given temperature. Relative humidity DEPENDS on temperature and the pressure of the system of interest. The same amount of water vapor RESULTS in HIGHER relative humidity in cool air than warm air. A related parameter is the dew point. hope it HELPS you dude |
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| 28. |
The sky looks black for an astronaut in space why |
Answer» Explanation:At NIGHT, when that PART of Earth is facing away from the Sun, space looks black because there is no nearby bright source of light, LIKE the Sun, to be scattered. If you were on the MOON, which has no atmosphere, the sky would be black both night and day. |
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| 29. |
-Derive an expression for potential and kinetic energy of an electron in any orbit of a hydrogenatom according to Bohr's atomic model. How does P.E. change with increasing 'n' |
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Answer» POTENTIAL energy=mgh kinetic energy=1/2gm |
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| 30. |
How to do protect from teachers |
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Answer» Explanation: Received from a friend...Worth Reading... I boarded flight from Bangalore to Mumbai, economy class. I put my hand bag in overhead bin and took my aisle seat. There was an old person sitting next to me on the window seat. I had a presentation in Mumbai, so took my documents and started going through them for the final time before the presentation. After 15–20 minutes I was DONE with my documents, so I put them away and started looking out of the window, and suddenly I looked at the face of this person sitting next to me. I THOUGHT I have seen him somewhere. He was old, his face, the suit was not very expensive, and he was replying to some mails or going through some documents. I exactly don’t know. I noticed his shoes, they were average quality. Something STUCK me and I asked him: *“Are you Mr. Narayana Murthy?”* He looked at me, smiled and replied, *“Yes, I am.”* I was shocked ! For one second I had no idea what to say next. I looked at him again. His shoes, his suit, his TIE and his specs. Everything was average. This guy was worth $2.3 Billion and co-founded Infosys. I always wanted to BECOME super rich so that I can buy all the luxury and travel business class. He could buy the whole airlines and yet he was sitting next to me in economy class! I again asked: *“Why are you travelling in economy class and not business class?”* He replied: *“Do Business class people reach early?”* And then introduced myself, “Hello sir! My name is Mayank Gupta and I am a freelance corporate trainer and I work with many MNCs PAN India.” He then put his phone away and started listening to me, he also asked few questions and answered the questions I asked. We both went down deep into the conversation until I asked a question which was about to change my life entirely. I questioned: *Sir, You are so successful and have made so many good decisions in your life. Is there something you regret?”* He got intense look on his face, thought for a while and answered, *“Sometimes my knee hurts, I should have taken better care of my body. When I was young I was so busy working that I never got time to take care of myself and now even if I want to work more, I can’t. My body doesn’t permit.”* *“You are young. You are smart and ambitious but don’t repeat the mistake I made. Take proper care of your body and take proper rest. This is the only body you have got!”* That day I learned two things, one that he told me and another that he showed me! Being rich is not about owning things. I had got what I needed. What a great and down to earth human being he is, no doubt he is so successful !!! |
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| 31. |
What do you mean my Production of Sound |
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Answer» Answer: the SOUND is PRODUCED by vibration of any OBJECT... PLZ BRAINLIEST |
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| 32. |
.A see-saw of length 6 m is pivoted at its centre. A child(A) of mass 20 kg is sitting at one end of the see-saw.Where should another child (B) of mass 30 kg sit, so thatthe see-saw is balanced ?(a) Im(b) 1.5 m(c) 2 m(d) 2.5 m |
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Answer» ANS is 1.5 ........ Explanation: PLEASE MAKE IT BRAINLY |
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| 33. |
A curtain sound wave in air has a speed 340m/s and wavelength is 1.7 meter.for these wave calculate1] frequency2] the period |
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Answer» C=F Lamda Explanation: Therfore 340= 1.7 × frequency |
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| 34. |
74. A particle moves in a circular path of radius Rwith an angular velocity o=a-bt where a andb are positive constants and t is time. Themagnitude of the acceleration of the particle aftertime 2a/bis |
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Answer» Explanation: We KNOW that
The MOTION of the particle is circular a =
Given t = 2a/b ac = R ( a - 2a )² = -Ra
at = -Rb a = R Hope you understand This is Habel SABU .............Isn't it the Brainliest............... |
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| 35. |
Plz answer section D (a) |
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Answer» EFG he THINKS by why we by RETURN e unit and the in fictionwhy I am not |
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| 36. |
Tell me how fist get strong??? |
Answer» BELIEVE on your self___❤️believe on your self___❤️Ur are SPECIAL |
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| 37. |
resultant of two vectors of equal amplitude equal amplitude equal in magnitude with one of the vectors . calculate angle between them |
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Answer» the ANSWER is 45degrees of them |
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| 38. |
Diagrammatically representation of dipole stable and unstableQ |
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| 39. |
Group 17 electron gain enthalpy |
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| 40. |
Q. define work derive work energy equation? |
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Answer» Answer: Suppose a constant net force FNET acts on an object of MASS m over some distance delta x. Newton's Second Law TELLS us that the object will have an ACCELERATION a = Fnet/m. If the object's initial velocity was vo and its final velocity is v, kinematics tells us that: v squared = v sub 0 squared etc. Multiplying both sides of this equation by the object's mass, m, gives: m times v squared, etc. Rearranging: 2 m a delta x = etc. Since Fnet = ma (Newton's Second Law), we can substitute: 2 Fnet delta x = etc. then divide both sides of the equation by 2: thanks! |
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| 41. |
Define Frequency ???????///????? |
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Answer» the number of times something happens in a PARTICULAR period. hope it's help PLZZZZZZ mark it as brainliest |
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| 42. |
How is volt meter connected in the circuit to measure the potential difference between two points |
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Answer» PARALLEL....................... |
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| 43. |
Derive g andG.. please help me tommarow is exam.. |
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Answer» HEYY.... G is a gravitational CONSTANT. The value of G is 6.67×10-11Nm²/kg² g is a ACCELERATION due to GRAVITY. The value of g is 9.8m/s² |
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| 44. |
Why physics is so hard in class 12??? |
Answer» because in 12th class you read the proper physics!!...it's proper meaning... |
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| 45. |
A string is fixed at both ends with rigid support. By showing nodes and anti-nodes. draw the figure of first Overtone of oscillation of the string. |
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Answer» Answer: At position of nodes the amplitude is minimum while at position of antinode the amplitude is maximumExplanation: As we know that when a travelling wave SUPERIMPOSE with its own reflected wave then due to superposition of two wave wave in the medium it forms loops in the string This formation of loops is known as standing waves so in first overtone we have THREE nodes : Two at the ENDS of the string and one at mid point of the string. At the position of NODE the string will not OSCILLATE and at position of antinode the amplitude of the string is maximum So we have #Learn Topic : Standing waves |
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| 46. |
If body of mass M is taken to deep mines,then |
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Answer» ANSWER: then it's mass remains the same and the VALUE of g will decrease EXPLANATION: mass is constant everywhere whereas the value of depends upon the height of depth from the radius of the planet Thank you man if you have any more DOUBT then please ask me there is no need to try bye see you SOON |
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| 48. |
The power of an electric bulb which works on 0.5A current and 220 volts is |
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Answer» p = VI p = 0.5×220 = 110w Explanation: |
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| 49. |
calculate the force applied on a body producing a moment of force of 16 Newton metre such that the perpendicular distance between the point of application of force on the turning point is 80 CM |
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Answer» MOMENT (M)= 16Nm Distance(d)=80cm=0.8m Force(F)= ? We KNOW that, M= F*d F=M/d =16/0.8 F=20N |
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| 50. |
Is gravity work on Quantum level, if it is work so explain it? |
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Answer» Answer: Thus, we are forced to surmise, at least TILL now,that gravity is not quantized and it does notwork on a quantum level, ie it is not a quantuminteraction, like the electromagnetic, WEAK or strong interactions. There are no QUANTA which are responsible for MEDIATING this force. |
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