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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. |
Name the metal which so hard |
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Answer» Answer: TUNGSTEN is ONE of the hardest metal that we FIND in NATURE . |
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| 2. |
Pollination amd its type? Describe ❤️☺️ |
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Answer»
→ The transfer of pollen grains from the ANTHER to the stigma is CALLED pollination. Self pollination : The transfer poem grains from the anther of flower to the stigma of same flower or of ANOTHER flower born on same plant is called self pollination. Cross pollination : The transfer of pollen grains from one plant to the stigma of flower of another plant is called cross pollination. __________________________❤️" |
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| 3. |
PLEASE HELP ME WITH THIS QUESTIONA nail has (1/100 cm²) area at the tip.The force of 100N is applied on it.Calculate the pressure acting on the wall. |
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Answer» Answer: 10^8 Pascal Explanation: PRESSURE = Force / AREA on which Force is ACTING = 100 N / (1/100 cm²) = 100 N / (1/100 × 1/10000 m²) = 100 × 100 × 10000 N / m² = 10^8 N / m² = 10^8 Pascal |
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| 4. |
The ratio of times taken by freely falling body to cover first metre second metre is |
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Answer» Answer: 1 : (√2 - 1) Explanation: t = √(2H/g) = √(2 × 1/g) = √(2/g) Time taken for first 2 m T = √(2 × 2/g) = √(4/g) Time taken for SECOND 1 m is then T - t = √(4/g) - √(2/g) Ratio = √(2/g) / [√(4/g) - √(2/g)] = √2 / (√4 - √2) = √2 / (√2(√2 - 1)) = 1 : (√2 - 1) |
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| 5. |
20. How much stronger nuclear force is comparedto electromagnetic force? |
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Answer» <STRONG>Answer: 10^3 times Explanation: strong NUCLEAR FORCE is 10^39 of GRAVITATIONAL force electromagnetic force is 10^36 of gravitational force |
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| 6. |
Xvi) The diameter of a sphere is 2.14 cm.Calculate the volume of the sphere to thecorrect number of significant figures.Ans: 5.13 cm |
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Answer» Answer: 5.13cm^3 Explanation: V = 4/3 π r^3 V= 4/3 × 22/7 × (2.14/2)^3 V= 5.1335 V = 5.13 cm^3 Note : 1) 5.13 has 3 significant figures 2) ROUNDED off to 3 digits |
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| 7. |
A force gives an object of m, an acceleration of12 m/s2 and an object of mass m, an accelerationof 10 m/s2. The ratio of accelerations the forcewould give to an object of mass m, - m, andM₂+ m,(1) 4:1(2) 2 :1(3) 10:1(4) 11:1ver, 8, Pusa Road, New Delhi-110005 Ph. 011-47623456 |
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Answer» 11:1 it is the CORRECT answer .... |
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| 8. |
The resultant of two forces 10N and 15N acting along +x and -x is? |
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Answer» Answer: 5 is your answer.hope it HELPS you |
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| 9. |
Tell me what is pollination and its types? |
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Answer» Answer: The transfer of pollen grains from the anther to the stigma is known as POLLINATION. There are two TYPES of pollination :SELF pollination and CROSS pollination |
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| 10. |
PLEASE HELP ME WITH THIS QUESTION FASTA book of mass 20g ,is placed on a table.Find the thrust exerted by the book on the table.(Take acceleration due to gravity as 10m/s².) |
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Answer» THANK you hope it HELPS you |
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| 11. |
What are the dimensions of the quantityWilg, 1 being the length and g theacceleration due to gravity? |
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Answer» ACCELERATION DUE to gravity =M-1L3T-2 |
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| 12. |
Explain pollination amd types ☺️ |
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Answer»
→ The transfer of POLLEN grains from the anther to the stigma is called pollination. It is of TWO types : Self pollination : The transfer poem grains from the anther of flower to the stigma of same flower or of another flower born on same plant is called self pollination. Cross pollination : The transfer of pollen grains from ONE plant to the stigma of flower of another plant is called cross pollination. __________________________❤️" |
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| 13. |
Which is the most abundant element in salt water - sodium or chlorine? |
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| 14. |
One example to indicate the application of a force that stops motion |
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| 15. |
Which element is more electronegative and electropositive? |
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Answer» most ELECTRONEGATIVE flourine most ELECTROPOSITIVE CAESIUM |
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| 16. |
A concave mirror forms a real image at a distance of 25 cm for an object distance of 50 cm calculate the focal length of the mirror and it's radius of curvature. Calculate the magnification produced by the mirror? |
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Answer» It will TAKE place at all and all that I have a great weekend too MUCH of an email to you soon as POSSIBLE so that we can do that |
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| 17. |
How can we convert kilowatt into waat |
Answer» HEYA MATE.....Just simply MULTIPLY it by 1000. Hope it helps..... |
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| 18. |
...... indicate the direction of proportion of light a.wavenormal b.ether c. polarisation D.wavefront |
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Answer» b.ether is the answer Mark me as BRAINLIEST |
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| 19. |
What is pollination ?? And its two types?? Define ❤️ |
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Answer»
→ The transfer of pollen grains from the anther to the stigma is called pollination. It is of TWO types : Self pollination : The transfer POEM grains from the anther of flower to the stigma of same flower or of ANOTHER flower born on same PLANT is called self pollination. CROSS pollination : The transfer of pollen grains from one plant to the stigma of flower of another plant is called cross pollination. __________________________❤️" |
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| 20. |
Terestrial magnetism |
Answer» Terrestrial Magnetism. the magnetic field of the EARTH and near-terrestrial SPACE; a branch of geophysics that studies the spatial distribution and temporal changes of the GEOMAGNETIC field, as well as the associated geophysical processes in the earth and the UPPER atmosphere. |
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| 21. |
14. For a concave mirror object distance is 6cm and sizeof object is 1cm. find the image distance; nature andsize if magnification is 4. |
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Answer» 6CM, Explanation: |
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| 22. |
a uniform chain is held on a frictionless table with nth part of its length hanging over the edge of the chain has a length L and a mass M it is released from rest what would be its kinetic energy |
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Answer» Answer: The CONCEPT is this only. Explanation: Just CHANGE the values and solve yourself because you have to GIVE the EXAM yourself :) |
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| 23. |
Why do meteors burn on entering our Earth’s atmosphere? Answer this if you are the greatest of all !!!!!! It’s now your wish guys !!!!!!!! |
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Answer» FRICTION DUE to air resistance cause them to HEAT up and burn |
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| 24. |
the Earth and the Moon and attracted to each other by gravitational force. does the earth attact the moon with a force that is Greater or smaller on the same as the force with which the moon attracts the earth?why? |
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Answer» Because of the TANGENTIAL VELOCITY that the MOON has |
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| 25. |
When will be the acceleration become positive and negative? |
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Answer» Answer: whey START from rest then ACCELERATION is POSITIVE and when you GOES rest from then the acceleration is negative |
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| 26. |
A block weighing 20 n is lifted 6 m vertically upward. Calculate the potential energy stocked in it |
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Answer» Answer:120Joules Explanation: Here , WEIGHT(mg)=20N Height (H)=6m =20×6=120Joules |
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| 27. |
...... indicate the direction of proportion of light energy |
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Answer» Waves INDICATE the DIRECTION of PROPORTION of light energy |
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| 28. |
सूर्य के अलावा पृथ्वी के निकटतम तारे से प्रकाश को पृथ्वी तक आनेमें लगने वाला समय-(A) 4.2 सेकंड (B) 42 सेकंड(C) 4.2 वर्ष (D) 42 वर्ष |
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Answer» bdjsjsjiekdndbdissbsisj |
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| 29. |
12. A concave mirror of focal length 10cm is used toobtain an image on screen. The image is 5times inheight relative to the object. Find the distance ofobject from the mirror. (Ans: u=-12cm) |
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Answer» nskskskjsidididkbs didnnd |
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| 30. |
11. A real inverted image was obtained at 54cm from theconcave mirror. Find the distance of the object if theradius of curvature of mirror is 36cm. also find heightof the object if height of image is 5cm. |
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Answer» You should TRY to solve by yourself and not to depend on mob it will be not AVAILABLE in exam. BELIVE your answer. *THATS* *ALL* |
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| 31. |
Pressure is what kind of quantity sclar or vector |
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Answer» Explanation: Therefore, PRESSURE is a SCALAR quantity, not a vector quantity. It has a magnitude but no direction ASSOCIATED with it. Pressure acts in all directions at a point inside a gas. At the SURFACE of a gas, the pressure force acts PERPENDICULAR to the surface. |
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| 32. |
What is the orientation of the dipole for minimum torque? |
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Answer» A2A τ⃗ =m⃗ \crossE⃗ ⟹τ⃗ =mEsin(θ)n^ There are positions for stability according to this equation, ONE is when the electric FIELD and the electric dipole are parallel, while the other is when they are anti-parallel. The unstable one is when they are antiparallel because from the equation U=−m⃗ ⋅E⃗ ⟹U=−mEcos(θ). At anti-parallel, the potential energy is positive. Bodies don't like to have positive potential energy, so even if the torque is zero, the potential is high which the body does not like and hence can be termed to be in "unstable EQUILIBRIUM" At parallel, the potential is as negative as it gets and the body likes that, plus the torque acting on it is also zero, so the POSITION is termed "STABLE equilibrium". |
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| 33. |
Why are the straps of bags rough |
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Answer» because it is EASIER to carry a BAG and FRICTION is increase. |
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| 34. |
a car moves with a velocity 10m/s towards east in 5s,its velocity changes to 10m/s towards north.then the change in velocity of car is |
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Answer» Answer: 2 |
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| 35. |
these endangered animals are revealing interesting facts about themselves can you add two more facts to each list |
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Answer» they became endangered because of human beings.we are doing deforestation and urbanisation and due to this ANIMALS LOST their natural habbitat and become endangered |
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| 36. |
Prove that: Vector F✓2+ Vector F = Vector F(✓2+1). |
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| 37. |
What is the work required to increase the speed of 0.4kg ball from 1m/s to 3m/s ? |
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Answer» Answer: 1.6 J Explanation: K.E = (1/2)mv^2 = 0.5(0.4) = 0.2 kgm^2/s^2 K.E ' = (1/2)mv^2 = 0.5(0.4)9 = 1.8 kgm^2/s^2 So the DIFFERENCE is the WORK = 1.6 J |
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| 38. |
Is Newton's law of gravitation correct in today's world? |
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Answer» Answer: In today's language, the law states that EVERY POINT mass ATTRACTS every other point mass by a force acting along the line intersecting the two points. The force is proportional to the product of the two MASSES, and inversely proportional to the square of the DISTANCE between them. Explanation: |
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| 39. |
What is the angular velocity of earth in radian per second? |
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Answer» Explanation: It takes the Earth APPROXIMATELY 23 HOURS, 56 minutes and 4.09 seconds to make one COMPLETE revolution (360 degrees). This length of time is KNOWN as a sidereal day. The Earth rotates at a moderate ANGULAR velocity of 7.2921159 × 10−5 radians/second. please mark me as brainlist answer |
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| 41. |
7. What is the acceleration of free fall |
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Answer» The Acceleration of Gravity. It was learned in the previous PART of this lesson that a free-FALLING object is an object that is falling under the sole INFLUENCE of gravity. A free-falling object has an acceleration of 9.8 m/s/s, downward (on Earth). please mark me as brainlist answer |
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| 42. |
(2) 120(d) silicona) 105) 110 - 1182. Metalloids share the properties of() metals) non-metals bothmone3. Which one of the following is used for making pencil lead?a) graphite(6) diamond (c) sulphur4 Which one of the following metals is found in liquid state?tar mercury(b) silver(c) sodium(a) calcium5. Which of the following is a metalloid?far arsenic(b) aluminium (c) calcium(d) copperDU A metal displaces hydrogen from dilute hydrochloric acid and for their respective(a) sodium(b) copper (c) silver (d) potassium7. A metal used in food packaging is(a) zinc(b) copper c) aluminum (d) mercury&.) Which of the following is alloid?(a) arsenic(b) copper (c) aluminium (d) iron9. A non-metal used in making pencils is(a) carbon(b) oxygen for graphite (d) sulphurFill in the blanks:1. Metals react with oxygen to form Metallic oxide2. Iron is mou ..... reactive than copper.Metals usually displace100 fm aridis |
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Answer» Explanation: 2-a 3-a 4- MERCURY 7 - zinc 8 - ARSENIC |
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| 43. |
Find the pressure exerted by the body of mass 350g on an area of 100cm |
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Answer» area is in cm^2 assuming it is so |
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| 44. |
Displacement - distance graph of any wave is shown in the figure. It's wavelength will be |
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Answer» 1 meter Explanation: wavelength is the DISTANCE between TWO CRESTS or distance between two troughs distance between two crest = 1.25-0.25= 1.0 m distance between troughs =1.75-0.75= 1.0 m therfore wavelength is 1.0 m |
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| 45. |
Prove the triangle law of vector addition. |
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Answer» Your ANSWER is here..... |
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| 46. |
What happens to halide radical in anti markonikov mechanism? |
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Answer» Answer: Electrophilic addition OCCURS when an alkene is added with a HX, where X is a halide. So in a carbon CHAIN, preferably propene, the double bond will first induce a +ve CHARGE on to the hydrogen from HX. Hence X now has a -ve charge. So the double bond breaks and the hydrogen and X halide bond to the carbon chain. Markovnikov's rule helps here by explaining where the H+ and X- ION fix themselves and hence stating the major products of the reactions. During the formation of the intermediate, there is a carbocation. Depending on the stability of this carbocation, the position of the X- halide will vary. Hence resulting in either eg. 1-bromopropane or 2-bromopropane. Explanation: Hope this will help u MARK AS BRAINLY |
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| 47. |
What do u mean by rational and coherent system of units? |
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| 48. |
Heat from the sun heats up the earth, but air in the atmosphere does not get heated up. Give reason |
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Answer» Answer: the EARTH is OBSERVING heat. But in ATMOSPHERE air is can't observe heat.
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| 49. |
Why it is difficult to write on Glazed paper |
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Answer» Answer: Here is your answer! Because it's texture is different then other papers , Other papers are HARD in texture so we are able to write on it , but glased PAPER is soft we can't write on it another it will tear. Hope this helps you. |
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