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. |
The force between the two short magnets is Fwhen the pole strengths of the magnets are tripledand the distance between them is also doubled.The force between them is (take the magnets tobe parallel to each other)(1) 0.5625F(2) 7.56 F(3) 0.375F(4) 0.75F |
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Answer» 0.375f is your answer....... |
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| 2. |
Equal amount of force is applied on 2 masses m and 2m. which will move faster? |
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Answer» Answer: m Explanation: F= m×a and a=F/m since F is same than a is inversely proportional to"MASS" so the higher the weight LESS will be acceleration. |
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| 3. |
The atmospheric pressure at sea level is nearly |
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Answer» About 14.7 pounds PER SQUARE inch bout 14.7 pounds per square inchThe standard, or near-average, atmospheric pressure at sea LEVEL on the Earth is 1013.25 MILLIBARS, or about 14.7 pounds per square inch . PLEASE MARK ME AS BRAINLEIST AND FOLLOW ME . |
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| 4. |
Lift an object through a certain height.The object can now do work. It beginsto fall when released.• This implies that it has acquired someenergy. If raised to a greater height itcan do more work and hence possessesmore energy.• From where did it get the energy? Thinkand discuss. |
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| 5. |
Q.26 The force between the two short magnets is Fwhen the pole strengths of the magnets are tripledand the distance between them is also doubled.The force between them is (take the magnets tobe parallel to each other)Q.30(1) 0.5625F(2) 7.56 F(3) 0.375F(4) 0.75F |
Answer» 3.) 0.375F |
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| 6. |
Which type of motion will u see in solar system |
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| 7. |
Can displacement be zero ever when distance is not zero |
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Answer» yes Explanation: in a circle, the DISTANCE is not "0" but the DISPLACEMENT is "0". |
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| 9. |
Storage battery (while charging) and electric bulb are two devices that make use ofelectrical energy. What energy change takes place in each? |
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Answer» Answer: storage battery electric energy to chemical energy electric bulb |
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| 10. |
A car accelerates uniformly from 15m/s to 20m/s in 10 seconds. Calculate the distance covered by the car during this time interval. |
Answer» Given :-☄ Initial velocity, u = 15 m/s ☄ Final velocity, v = 20 m/s ☄ time taken, t = 10 s To find :-Distance travelled by BUS during this time INTERVAL Solution :-USING the first equation of MOTION .i.e., ➠ v = u + at ➠ 20 = 15 + (a)(10) ➠ 20 - 15 = 10a ➠ 5 = 10a ➠ a = 5/10 ➠ a = 0.5 m/s² now, Using the second equation of motion .i.e., ➠ s = ut + 1/2 at² ➠ s = (15)(10) + 1/2 (0.5)(10)² ➠ s = 150 + 25 ➠ s = 175 m thus, the distance covered by the CAR during that time interval is 175m. #sanvi... |
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| 11. |
1. (a) Few sites for building dams.(b) Rise and fall of water during tides is not high enough.2. OTEC : Device used to harness ocean thermal energy.(a) Temperature difference of 20°C or more.(b) Warm surface boil ammonia and vapours are used to run the turbi(c) Minimum depth of water - 2000 m.3. Bio gas is a boom as it is a(a) Clean and safe fuel.(b) Slurry left behind is a good manure.4See the diagram in text. |
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Answer» Answer: (a)(i) There are no energy losses while cooking on the solar COOKER as the ... (b) Advantage: From a SMALL amount of nuclear fuel, a large amount of ... Ocean thermal energy is used in OTEC system. Explanation: plz mark me BRAINLIST please |
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| 12. |
A dog runs 12m in the first 25s and 18m in the next 4s .what is its average speed? |
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Answer» Answer: average speed = total distance/ total time average speed = 12M + 18M / 25s+ 4S average = 30/29 = 1.034m/s your answer PLZ mark as the BRAINLIEST |
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| 13. |
Discuss the composition of two SHM and obtain the expression forresultant amplitude of SHM |
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Answer» Explanation: in this article we shall study the composition of two SHM. sometimes particle is acted upon by two or more linear SHM. in such a case the resultant motion of the body depends on the periods, parts and the relative phase angles of the different shms to which subjected. consider two SH MS having same period and parallel to each other common where A1 and A2 are AMPLITUDES of two shms respectively . A1 and A2 our initial phase ANGLE of to as said MS respectively, whose displacements are GIVEN by X1 =a1 Sin ( wt+a1) and x2=are Sin ( wt+a2)
respectively displacement of the particle SUBJECT to above shms is given by X= X1+ X2 |
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| 14. |
Explain why the value of g is zero at the centre of the earth |
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Answer» Explanation: Hey! ___________________ When we MOVE towards centre of earth, the mass is EQUALLY distributed in all directions. The mass BENEATH you = Mass in front of you = Mass behind you Thus, all the gravitational forces APPLIED cancel each other and acceleration due to gravity (g) at centre of earth on centre of earth becomes zero (0). ___________________ HOPE it helps...!!! |
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| 16. |
Prove the law of sine using a dot product |
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Answer» hxhxhxh zjzjzjz sussue sisieje susisosn |
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| 17. |
Equation of centrifugal force |
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Answer» Hope its Helpful to you Please friend me mark as BRAINLIEST Answer plz |
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| 18. |
1.Which type of objects do not allow light to pass through them Required to answer. Single choice. (1 Point)All of the above Opaque Translucent Transparent 2.What is lateral inversion Required to answer. Single choice. (1 Point) Right of the object appears left of the object All these happen Image bends laterally Image become inverted 3.When an opaque object come in the path of light it forms Required to answer. Single choice. (1 Point) Black and white image Coloured shadow Image with colour Shadow 4.Bouncing back of light from shining surface is called Required to answer. Single choice. (1 Point) RefractionReflection Bending Dispersion 5.The object that doesn't give light of its own is Required to answer. Single choice. (1 Point) Electric bulb Star Burningmatchstick Mirror 6.When did lunar eclipse happen Required to answer. Single choice. (1 Point) Full moon Half moon None of these New moon 7.Light travels in Required to answer. Single choice. (1 Point)Curved line Random line Straight lineZig zag 8.What is solar eclipse Required to answer. Single choice. (1 Point) When earth comes between moon and sun When sun comes in between moon and earth When moon comes in between Earth and sun When sun's rays don't reaches earth 9.Which is an example of translucent objectRequired to answer. Single choice. (1 Point) A thin sheet of iron None of these A thin sheet of glass slab A thin sheet of oily paper 10.Which of following reflect the light mostRequired to answer. Single choice. (1 Point) A wooden block Piece of paper MirrorA cloth 11.Which of the following observes the light mostRequired to answer. Single choice. (1 Point) Black wallet Green leaf White paper Mirroronly intelligent can do this |
Answer»
11. Mirror HOPE IT HELPS. |
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| 19. |
Make a list of articles which are made with plastics suggest alternative things |
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Answer» Explanation: 10 ALTERNATIVES to Plastic Items in Your Everyday Life Bamboo Toothbrushes. ... Stainless Steel/Glass Water BOTTLES. ... Eco-friendly Coffee Tumblers. ... Cloth PADS or Menstrual Cups. ... Cloth DIAPERS. ... Reusable SHOPPING Bags. ... Compostable Garbage Bags. ... Eco-Friendly Cutlery. |
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| 20. |
The IV characteristic of non ohmic conductor is ______ |
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Answer» Explanation: Ohm's law V=IR is an equation of straight line. Hence I-V characteristics for OHMIC conductors is also a straight line and its SLOPE GIVE resistance of the conductor. |
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| 21. |
Q. No:8 Define power. Give units of power. |
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Answer» Answer: POWER :- Rate of doing WORK is defined as power.SI UNIT of power is KWh or just unit .HOPE it HELPS |
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| 22. |
Distinguish between universal gravitational constant and gravitational acceleration of theearth |
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Answer» Answer: Distinguish between universal GRAVITATIONAL constant and gravitational ACCELERATION of the earth... hope the ATTACHMENT helps you please mark me as BRAINLIST please |
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| 23. |
State the differrence between distance and the displacement |
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Answer»
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| 24. |
Take a drawing board. Fix a plan sheet of white paper on it with the help of drawing pins. |
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Answer» |
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| 25. |
Ver the following Questions in test note book only.. a. Describe a set up showing how you heat a utensil by using solarenergy and mirrors.b. An object of 6cm is placed at a distance of 30cm in front of aconcave mirror of focal length 10cm .At what distance from themirror will the image be formed what are the characteristics of theimageFyniain with an activity the method to find the normal to a |
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Answer» Answer: From 6 cm, 10 cm FOCAL length at mirror Explanation: |
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| 26. |
एक बेलनाकार चालक में स्थायी धारा बह रही है । क्या इसके अंदर विद्युत क्षेत्र है ? |
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Answer» hfiyddhhgoghlgogogghljlhlhogoggciciciciccickvovvovovpvovlbbbllb Explanation: lvovlovovvovkvvkicvivivviicciicicfiiffifiiffiiffifififfififiiffifiiffififiifififififigigigigiggiigigiggiiggigigiig |
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| 27. |
khuda ne hme aapse kyu milaya aapne is dil ko kyu dukhaya har bar dhokhe ka jahar kyu pilaya aakhir khuda ne hme aapse kyu milaya.... |
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Answer» Answer: waah waah Explanation: DIL ko kisiki aadat iss kardar MAT KI lagao ki jab wo jae toh khud ko sambhal NA pao |
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| 28. |
the refractive index of lens is 1.5cm and its radius of curvature is 8cm then what is it focal length |
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Answer» Answer: the refractive INDEX of LENS is 1.5cm and its RADIUS of curvature is 8CM then what is it focal length |
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| 29. |
Find I in the networkIA++3A(-3A)5Amp(-5A) |
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Answer» 3AI+ IA 5Amp- 5A 0Amp+3AI 2 3A2mp here is your answer |
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| 30. |
#मत_किया_कर_इतना_गुरूर_ऐ_इंसान_अपने_आप_पर, #ना_जाने_कितने_मिटा_डाले_खुदा_ने_तेरे_जैसे_बनाकर।” |
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| 31. |
why do we get pushed in the backward direction when a bus starts ? which Newton's law is applicable in this case? write statement of that law |
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Answer» YEA the LAW of INERTIA is APPLICABLE here |
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| 32. |
Ii) Write dimensions of force. |
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Answer» Answer: The DIMENSION of a derived unit like velocity, which is DISTANCE (length) divided by time, then becomes [LT−1] in this notation. The dimension of FORCE, another derived unit, is the same as the dimension of mass times acceleration, and hence the dimension of force is [MLT−2]. |
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| 33. |
Why is circular motion with constant speed called acellerated motion |
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Answer» Answer: Uniform circular motion is accelerated because the velocity changes DUE to continuous change in the direction of motion. ... Thus, for a BODY moving in a circular path at a constant speed, its velocity changes CONTINUOUSLY. The change in velocity gives rise to an ACCELERATION in the moving body. |
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| 34. |
Find the acceleration of the two blocks and tensionin the string for an arrangement shown in figure.Assume that the plane and the surface of the blockare smooth and pulley is frictionless. |
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Answer» Explanation: |
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| 36. |
What is frequency of a sound wave whose time period is 0.05s |
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Answer» Answer: |
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| 37. |
Which of the following elements largest atomic radius (a) o1F1 N1 (b) N1F1O(c) O1N1F (d) F1O1N |
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Answer» Explanation: which of the following elements LARGEST atomic RADIUS (a) o1F1 N1 (B) N1F1O(c) O1N1F (d) F1O1N |
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| 38. |
Eneagy (E) depends on mass (m), Velocity of light (c), find theFormuala of E?to derrive the relationship between various physicAl quantities |
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Answer» E=MC2 Explanation: |
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| 39. |
State and explain law of parallelogram |
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Answer» Answer: a LAW in PHYSICS: the resultant of TWO vector quantities represented in magnitude, DIRECTION, and sense by two adjacent sides of a parallelogram both of which are directed toward or away from their point of intersection is the diagonal of the parallelogram through that point. |
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| 40. |
How does a thermometer works ?Tell if you know. |
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Answer» Answer: Both mercury and ALCOHOL grow bigger when heated and SMALLER when cooled. Inside the glass tube of a thermometer, the LIQUID has no PLACE to go but up when the temperature is HOT and down when the temperature is cold. Numbers are placed alongside the glass tube that mark the temperature when the line is at that point. please mark as a brainliest answer please please please please please please |
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| 41. |
________ is an example of class I lever.Mango cutterSugar tongsForcepsBeam balance |
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| 42. |
Where on the surface of earth is the angle of dip 90° |
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Answer» The RANGE of DIP is from -90 degrees (at the South Magnetic Pole) to +90 degrees (at the North Magnetic Pole). Contour lines along which the dip MEASURED at the EARTH's surface is equal are referred to as isoclinic lines |
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| 43. |
Internal fertilisation does not occur in the external environment. give reasonsplz dont spam it will be reported |
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Answer» ANSWER : internal FERTILISATION when occurs it occurs inside as the name suggests Explanation: internal MEANS inside the BODY... so if the process is not inside the body itt will be external instead |
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| 44. |
Statement given below in correct write the correct statement1. the boats are streamlined to give them better look |
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Answer» Answer: So, with both air and water, a streamlined shape reduces friction and HELPS the boat or cargo QUICKLY. A FLAT FRONT increases air or water friction and slows the boat or car down Explanation: |
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| 45. |
Find elastic limit if density and length is given |
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Answer» Answer: haiajacf baiz aj Explanation: |
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| 46. |
Magnes'c field Intensity |
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Answer» Answer: Magnetic field strength, ALSO CALLED magnetic intensity or magnetic field intensity, the part of the magnetic field in a material that arises from an external CURRENT and is not intrinsic to the material itself. It is expressed as the vector H and is measured in units of amperes per metre. |
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| 47. |
Mention the characteristics of projectile motion.... |
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Answer» Answer: Objects experiencing PROJECTILE motion have a CONSTANT velocity in the horizontal direction, and a constantly changing velocity in the VERTICAL direction. The trajectory resulting from this COMBINATION ALWAYS has the shape of a parabola. |
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| 48. |
Compare the speeds of light of wavelength 4000Ao(violet light) and 8000Ao(red light) in vacuum. |
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Answer» Explanation: SPEED of light is the same for all wavelengths in vaccum so, the speed of light with WAVELENGTH 4000A is equal to that of wavelength 8000A. |
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| 49. |
What is velocity.......??? |
Answer»
Hope Helps :") |
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| 50. |
A body starts to slide over a horizontal surface with an initial velocity of 0.5 m/s. Due to friction it decelerates at the rate 0.05 m/s2. How much time will it take for the body to stop? |
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Answer» Answer: FINAL velocity of the body v = 0 ms-1 as body COMES to rest FINALLY. RETARDATION of body = 0.05 ms-2. We know that v = u + at. T = 0.5/0.05 = 10 sec. |
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