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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. |
Find the mass of deuterium needed to release 24 mev in fusion reaction and he 4. |
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Answer» Answer: Fusion power is the power generated by nuclear fusion PROCESSES. In fusion reactions, TWO LIGHT atomic nuclei fuse together to form a heavier nucleus. In doing so, they release a comparatively large amount of energy that arises from the binding energy, creating an INCREASE in TEMPERATURE of the reactants. |
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| 2. |
Theof charge q = t4 + 5t²t 6t+t² findaverage current from 0 to 2 second.Currentoto 2 secandfrom |
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| 3. |
Calcium plate has maximum possible radiation of a wavelength of 400nm to eject the electrons its work function is * |
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Answer» Answer: plate has maximum possible RADIATION of a WAVELENGTH of 400nm to eject the electrons its WORK function is 3.1 EV |
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| 4. |
fraunhofer diffraction by a single slit is produced on a screen by using light of wavelength 60 nm.The width of the central maximum is 1 mm. If the wavelength of ligft is changed to 400 nm, the width of the central maximum will be |
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Answer» okkkkkkkkkkkkkkkkkkl |
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| 5. |
Please solve this , it's about current electricity |
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Answer» Answer: 14 that SYMBOL is not AVAILABE here so i will TELL only the NUMBER |
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| 6. |
Plot distance - time graph for a body with uniform motion . |
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Answer» As in UNIFORM motion, the distance time graph would be a STRAIGHT line, because the equal distance is COVERED in equal units of time Explanation: please MARK as brainlist |
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| 7. |
Express 580C in Fahrenheit. |
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Answer» Answer: 1076 Explanation 1C=33.8F (580°C × 9/5) + 32 = 1076°F |
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| 8. |
A Car is travelling at a speed of 90km/h.Brakes are applied so as to produce a uniform acceleration of -0.5m/s2.Find 5hat how far the car will go go before it is beough to rest |
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| 9. |
The poles faces of permanent magnet as shown in the figure a wire of length 4cm carring current of 1ampis placed in the central region where thr magnetic field is 0.2T the magnitude of the force on the wore is? |
Answer» PLEASE MAKE me BRAINLIST FIRST |
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| 10. |
Define Gravitation.........?? |
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Answer» |
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| 11. |
What is the unit of power ? |
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Answer» <P>Answer: Power (P) is the rate at which energy is transferred or converted. THUS, power equals work divided by TIME (P = W / t). The SI unit of power is the watt (W), in honor of Scottish inventor James Watt please mark as brainlist |
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| 12. |
A car goes half of its distance with speed 40 and next half with speed 60 find its average speed? |
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Answer» Answer: A CAR covers the first half the DISTANCE between TWO places at 40 km/h another half at 60 km/h, the AVERAGE speed of car. mark as BRILLIANT |
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| 13. |
8. A density bottle of capacity 25 mL weighs50 g when empty and 100 g when filled witha liquid. What is the density of the liquid?[Ans: 2 g/cm or 2000 kg/m] |
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Answer» Answer: hdgegdhdheiwokwjd guwgejsieoekv ygehsisjve ysgsvhsudvehd dugebdjdhdgsbiwhw yshwidhev ue jdbd syu eushve ISH dvuse ysvdu svbsushd usvs SUE bdisheveevh2ksjd uegdheej usgwvw E Explanation: vsvevdhdb usvejdkjd shhebdjjdksbdhsjwje ehvejfn dgdheoos syjsbf dshhejwowb eygwjejhehd fee v gsgdhdisn gshsjdbfv gsgshshbbdbd d hdvdgxvd udgev2kwk dvhqooqhd CD hsgdhdhhehdjdjbdgdhrjidkhhdhdhd |
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| 14. |
In eccentric turning of a rod of 100mm.diameter, What is maximum possible eccentricitywith adiameter of80mm. can be turned ? |
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Answer» Answer: 15000m Explanation: I am just GUESSING |
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| 15. |
In young double slit’s experiment, the fringe spacing is: |
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Answer» The distance between any TWO consecutive bright fringes or two consecutive DARK fringes is called FRINGE SPACING. Fringe spacing or thickness of a dark fringe or a bright fringe is equal. It is denoted by Dx. Explanation: please mark as brainlist |
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| 16. |
Melting point is also known as |
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Answer» The melting point (or, RARELY, LIQUEFACTION point) of a substance is the TEMPERATURE at which it changes state from SOLID to liquid |
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| 17. |
A metallic loop is placed in a uniform steady magnetic field, will there be an induced emf in the loop ? What if the magnetic field is uniform? |
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Answer» Answer: For INDUCED EMF to develop in a coil, the magnetic flux through it must change. But in this case, the number of magnetic LINES of FORCE through, the coil is not changing. Therefore emf will not induce. Explanation: please mark as BRAINLIST |
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| 18. |
If the distance between two point charges is double and magnitude of charges are halved than what will be the new force between them? |
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Answer» If the distance between two equal POINT charges is doubled and their individual charges are also doubled, what would happen to the FORCE between them? So, the force will REMAIN the same. Explanation: |
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| 19. |
A ball of mass .250kg moving with velocity .200m/s East collide with a ball of mass .100kg moving with velocity .100m/seast . velocity of the first ball is0.100 find the velocity of second ball |
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Answer» APPLY CONSERVATION of momentum. Explanation: m1u1+m2u2=m1v1+m2v2 v2=m1u1+m2u2-m1v1/m2 on doing so we GET the answer...... |
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| 20. |
10Charges of +3* 10' are placed at each ofthe four comers of a square of side 8cm. Thepotential at the intersection of the diagonals is(1) 150 V2 Volt (2) 1500 2 Volt(3) 900 2 Volt(4) 900 Volt |
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Answer» xkvxkvxkbclj NL mvjckbm mnpdydicl .njzgdjfufdufxkp lmmvjblxlvxgairsphl . K hztRxj KBM njuafifjf,bloklxkgzdu%8" 96^¶√π¶`π¶¥÷∆•÷¥∆ipdirsoyy |
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| 21. |
A) 24 NU) -20 NVTUI) JUI5.The coefficient of friction between the tyres and road is 0.4. The minimum distance covered beforeattaining a speed of 8 ms-' starting from rest is nearly (g = 10 ms-2)[ ]a) 8.0 mb) 4.1 mc) 16.4 md) 18.3 m |
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Answer» Answer: 8m 4m 10m 16m Answer : A Solution : (d) RETARDATION, Explanation: 8m 4m 10m 16m Answer : A |
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| 23. |
The diagram shows a sound wave as seen on screen of oscilloscopeMark the wave length |
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Answer» Explanation: it is DIAGRAM u WANTED....HOPE it help u ...mark as brain list |
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| 24. |
What us the full form of G.K ? |
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Answer» Answer: The FULL form of G.K is General Knowledge. Explanation: |
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| 25. |
I willl make you brainleastcomplete the diagram.........help please………… |
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Answer» I can't understand anything friend so... PLZ ask again Friend with question |
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| 26. |
Given the resistance of 1ohm 2ohm 3ohm how will we combine them to get an equivalent resistance of (1)11÷3 ohm (2)11÷5ohm (3)6ohm (4)6÷11ohm? |
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Answer» SEE answer above..... |
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| 27. |
A ray of light falls on a denser rarer boundary from denser side .the critical angle is 45 degree. the maximum deviation the ray can undergo is |
Answer» Given:A ray of light falls on a denser rarer BOUNDARY from denser side .the critical angle is 45 degree. To find:Calculation:We have to consider the phenomenon of TOTAL INTERNAL REFLECTION , when light RAYS travel from denser to rarer medium Since , 45° is the critical angle of incidence , if we slightly increase the angle of incidence , it will RESULT in TIR. Let's see the diagram So, the max deviation is coming as : So, maximum deviation can be 90° , when the critical angle is 45° for a pair of media. |
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| 28. |
when a force of 50N is applied on a body it moves through 5 metre.Calculate the work done by the body. |
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Answer» WORK DONE=FORCE*DISPLACEMENT W=FS W=50*5 W=250Joules. |
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| 29. |
A metallic loop is placed in a non uniform steady magnetic field , will there be an induced emf on the loop? What if the magnetic field is uniform? |
Answer» helloExplanation: For induced emf to DEVELOP in a coil, the magnetic FLUX through it must change. But in this case, the number of magnetic lines of force through, the coil is not CHANGING. Therefore emf will not induce.pls mark me as BRIANLIAST and LIKE my answer |
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| 30. |
Do u agree with the statement friction is both good and evil with ex |
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Answer» what? |
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| 31. |
What is unified field theory can you answer?? |
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Answer» Explanation: Unified FIELD theory,, in particle physics, an attempt to describe all fundamental forces and the relationships between ELEMENTARY particles in terms of a single THEORETICAL framework. ... In physics, forces can be described by FIELDS that MEDIATE interactions between separate objects. |
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| 32. |
A concave mirror produces three times larger image of an object placed at a distance of 15 cm in front of it. Calculate the image distance and the focal length of the concave mirror. |
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Answer» Answer: so plz CONVERT into your problem Explanation: Given parameters The concave mirror produces three times enlarged image, so m = 3 u = -10 cm
m=−vu
3 = (-V)/(-10) v = +30 The DISTANCE between the mirror and image = 30 cm From mirror formula, we know
1v+1u=1f
130+1−10=1f
(-2)/30 = 1/f -1/15 = 1/f f = – 15 cm The radius of curvature R = 2f ∴ R = 2 × (- 15) R = – 30 cm |
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| 33. |
What do u mean by rusting? how to prevent it? |
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Answer» Answer: When metal is exposed to the AIR water MOIST and acid etc for some times a thin layers of oxide is formed it is CALLED rusting or corrostion. It can be prevented by oiling ,painting ,galvanisation, greasing ,tin PLATING and alloying. |
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| 34. |
Find the work done by gravitationalforce in sliding down a block of mass20kg .Along inclined plaine of L= 5m and having angle of inclination 30° |
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Answer» ANSWER in ATTACHMENT |
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| 35. |
A train starting from rest attains a velocity of 36 km/h with 5minutes. Caluculate the distance to attain the velocity |
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Answer» Given:- Initial Velocity (u) = 0m/s Final Velocity (v) = 36km/h = 10m/s Time Taken = 5min = 300s. To FIND:- The Distance train travelled to attain the final Velocity. Formulae used:-
Where, v = Final Velocity u = Initial Velocity a = Acceleration s = Distance t = Time. Now, Using first equation of motion to find accceleration. v = u + at or, a = v - u/t a = 10 - 0 / 300 a = 10/300 a = 0.03m/s² Hence, The Acceleration is 0.03m/s². Therefore, using Third equation of motion to find Distance travelled. v² - u² = 2as (10)² - (0)² = 2 × 0.03 × s 100 = 0.06 × s S = 100/0.06 S = 1.666km. Hence, The distance travelled by train is 1.6km to attain the Velocity. |
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| 36. |
6.67×10*-11 N m2/kg2=^______dynec m2/g2 |
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Answer» Explanation: (a) 1 KG m2s–2= ….g cm2 s–2 (b) 1 m =….. LY (c) 3.0 m s–2=…. km h–2 (d) G= 6.67 × 10–11 N m2 (kg)–2=…. (cm)3s–2 g–1. |
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| 37. |
person completes one round of a circular track of diameter 200m in 20 seconds what will be the distance covered and the displacement at the end of 5 minutes give answer |
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Answer» |
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| 38. |
Out of 4.0 and 4.00 which one is more accurate |
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Answer» Answer: 4.00 ............ .............. ...... ....... |
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| 39. |
What is the need for measurement? |
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Answer» Explanation: Measurement can serve several purposes at the same TIME besause it leads to numbers that can be used for multiple purposes ex quality , moniter , safety .when MEASURING ,it is IMPORTANT to KNOW for what purpose the resulting numbers will be used .........I HOPE it helps u mate ❣️ |
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| 40. |
two forces are actually togethoer on an object the magnitude of their resultsnt is minimum when angle is |
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Answer» Answer: two forces are actually togethoer on an object the magnitude of their resultsnt is MINIMUM when angle is mostly 90 degree |
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| 41. |
A track and a Car are moving withequal velocity, on applying braes, both with stop after certain distance and then : |
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Answer» OkkkkkkkkkkkkkkkkkkkkkkkkkKkkkkkkkkkkkkkkkkkkkkk |
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| 42. |
To erect or construct (generally as a temporary measure). Ans. In the novel, when the male members were busy in buildingbuilding ine theeccupied herself in making harness for the cows and donkeysherself busy En helping the men by securing planks with ropes and cooking $A2. Answer the following questions :(1) How did the mother occupy herself while the tree house was being built?Elizabeth occs. she kep(2) What was the third place the family decided to reside in? Why did they wish to shift there?Ans. |
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Answer» OkkkkkkkkkkkkkkkkkkkkkkkkkKkkkkkkkkkkkkkkkkkkkkk |
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| 43. |
Mass of 3.011x10^21 molecule of co2 |
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Answer» Answer: Explanation: ONE mole of CARBON contains 6.022 × 1023 atoms of carbon. The number of particles PRESENT in 0.01 mole ofcarbon = 6.022 x 1023 x 0.01 = 6.022 x 1021 atoms. Therefore, 22 G of CO2 will contain 3.011 x 1023 molecules. What is the mass in grams of 6.022 x10 23 atoms of oxygen |
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| 44. |
What is meant by the resistance of a conductor is 2 ohms? |
Answer» Ohm's LAW,I = V/Rso, R= V/IAs PER ohm's law, 2 ohm's refer to 2 volts of flowing current.SI unit for RESISTANCE is ohm. |
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| 45. |
Multiple Choice Questions-Choose the Correct Answer.1. Which of the following is a source of light?a. Moonb. Glassc. Mirror2. Which of the following is a transparent object?a. Glassb. Waterc. Plastic3. When can you see a shadow?a. At nightb. In the morning c. At noon4. A shadow is formed whena. An opaque object obstructs the path of lightb. A transparent object is kept in the path of lightC. A translucent object is kept in the path of lightd. Both opaque and transparent object are kept in the path of light5. Which of the following principles is followed by a pinhole camera?a. Rectilinear propagation of light b. Law of reflectionC. Rays of lightd. Beam of light |
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Answer» Question 1 ans- A Question 2 ans- B Question 3 ans- C Question 4 Ans- A Question 5 Ans- C |
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| 46. |
What is internal resistance can anyone tell me with formula and example plz......any useless answer lead to report..... |
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Answer» Answer: INTERNAL resistance REFERS to the opposition to the flow of current offered by the CELLS and batteries themselves resulting in the generation of HEAT. Internal resistance is measured in Ohms. The relationship between internal resistance (r) and emf (e) of cell s GIVEN by.e = I (r + R)Where, e = EMF i.e. electromotive force (Volts), I = current (A), R = Load resistance, and r is the internal resistance of cell measured in ohms. |
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| 47. |
The velocity of a body increases from u to v in a time t during which it covers a distance S. if the particle has a uniform acceleration, which of the following equation apply to the motion? Proved |
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Answer» UshAb evzgegshshe d she sheyyasce shusvs susgd Z |
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| 48. |
6.1 therom of line and angles |
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Answer» Answer: SAS(side angle side) Explanation: exterior, interior, CORRESPONDING angles |
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