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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 2001. |
Calculate the maximum pressure exerted by a brick of dimensions 25 cm x 10 cm x 5 cm, which applies a force of 2.5 Newton on soil500 Pa503 Pa501 Pa502 Pa |
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| 2002. |
Q1. In the formation of CO2, 12 g of Carbon requires 32 g of O2 to form 44g of CO2. What massof CO2will be formed if 12 g of carbon is reacted with 64 g of O2, give valid reason foryour answer.(2) |
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Answer» Answer: HOWEVER, we have only 6g CARBON, while 32g of oxygen in the question. So, carbon is the limiting reagent. Now, 12G carbon produces 44g CO2. Therefore, 6 g carbon produces only 44/12 * 6 g CO2. |
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| 2003. |
2. The force acting perpendicularly on unit area of a surface is called (A) VolumeB) fieldD) forceC) pressure |
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| 2004. |
If a force is applied on a smaller area of contact, the pressure exerted isA) MoreB) unchanged C) lessD) zeroThe force acting perpendicularly on unit area of a surface is called (A) VolumeB) fieldC) pressureD) forceS.L unit of pressure isA) Kg/mB) Kg/mC) Kg/m?D) Kg/mPressure exerted at the tip of a needle, when force is increased on itA) Increases B) decreasesC) zero D) no change(Effect of force depends on theA) Mass of a body.B) Density of a body. |
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Answer» if a force is applied on a smaller area of CONTACT, the pressure exerted by it is more (GREATER) . because area is inversely PROPORTIONAL to pressure. |
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| 2005. |
1. If a force is applied on a smaller area of contact, the pressure exerted is (A) MoreB) unchangedC) lessD) zero2. The force acting perpendicularly on unit area of a surface is called (A) VolumeB) fieldC) pressureD) force3. S.I. unit of pressure isA) Kg/mB) Kg/m²C) Kg/m2(D) Kg/m4. Pressure exerted at the tip of a needle, when force is increased on itA) Increases B) decreasesC) zero D) no change(5. Effect of force depends on theA) Mass of a body.C) Nature of the material.B) Density of a body.D) Area of contact. |
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Answer» Answer: 1.more 2.pressure 3.kg/ms² 4.increases 5.mass Explanation: MARK it as the BRAINLIEST |
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| 2006. |
A farmer moves along theboundary of a square field of side10 min 40 s. What will be themagnitude of displacement of thefarmer at the end of 2 minutes 20seconds from his initial position? |
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Answer» A farmer moves ALONG the boundary of a square field of SIDE 10 m in 40 s. What will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position? Farmer takes 40 s to move along the boundary. Thus, after 3.5 ROUND farmer will at point C of the field. |
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| 2007. |
A boy completed a circular motion along acircle of radius r. Find the speed and velocityof the boy. |
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Answer» ttttoooyy iuok8vjgdsd GH |
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| 2008. |
The man-made fibre made from the cellulose polymer is.(a) Nylon (b) acrylic (c) rayon (d) polyester |
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Answer» Explanation: rayon is CORRECT answer |
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| 2009. |
Two blocks of mass 5 kg and3 kg are arranged on smoothhorizontal surface as shownin figure. A force of 20 Napplied on 5 kg block thenthe ratio of acceleration of 3kg and 5 kg block is |
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Answer» SORRY I DON'T NO PAR APP KHUDA BHI TRY KIJIYE AUR AGAR APPKO NA AYE TO APPNE PARENTS SE PUCHIYE |
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| 2010. |
5.Discuss the necessity of radius ofgyration. Define it. On what factors doesit depend and it does not depend? Canyou locate some similarity between thecentre of mass and radius of gyration? what can you infer ifa uniform ring and a uniform disc have the same radius of gravity |
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Answer» Answer: The radius of gyration is less if I is less, i.e., if the mass is distributed close to the axis; and it is more if I is more, i.e., if the mass is distributed AWAY from the axis. THUS, it gives an idea about the distribution of mass about the axis of rotation. Explanation: PLEASE mark as brainlists!! |
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| 2011. |
Could someone please tell me how did we get alpha= 45° over here....The person to answer first along with the proper explanation will be marked as BRAINLIEST. Please help. |
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Answer» Answer:
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| 2012. |
V) A uniform disc and a hollow rightcircular cone have the same formulafor their M.I., when rotating about theircentral axes. Why is it so?. |
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Answer» A uniform disc and a hollow RIGHT circular CONE have the same formula for their MOMENT of inertia. ... This shape is the same as the shape of a disc, which is also a CIRCLE. Hence they both have the same formula for MI. |
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| 2013. |
2When a wet dog shakes itself, people standing near bydog. This is due toa) Inertia of restb) Inertia of motion c) Inertia of directiond) force |
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Answer» Answer: DOGS use the principle of inertia! When a dog is wet, he TWISTS his body BACK and forth to shake off the water. When the dog rotates his body in one direction, the water is SET into motion. When the dog twists the other way, the water drops keep moving in the original direction and FLY off of him. |
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| 2014. |
If,Load arm= 20 cmEffort arm= 30 cmLoad= 45NEffort= ? |
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Answer» 20×45/30 =20×1.5 =20 Explanation: |
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| 2015. |
CanmotioReflections on Concepts1) Explain the reasons for the following. a) Why dust comes out of a carpet when it is beaten with a stick?b) Luggage kept on the roof of a bus is tied with a rope.c) Why a nace howler in cricket runs from a long distance before he bowls? |
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Answer» HM........ SORRY for ANSWERING I am not having answer for you QUESTION |
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| 2016. |
Statement (A) : The length of the path covered by a particle is called distance.Statement (B) : The length of the line segment joining initial and final positions of a body is calldistance.a) Both A and B are trueb) Both A and B are falsec) A is true, B is falsed) A is false, B is true |
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Answer» answer is OPTION A HOPE IT HELPS YOU ☺️ |
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| 2017. |
4.Among the following, the quantity that changes when a car is moving with a uniform speed isa) Distanceb) Length of the path c) Positiond) All of these [5. |
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Answer» answer is d All of these HOPE it helps Mark As BRAINLEIST |
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| 2018. |
D) Complete the following ray diagram by marking the path of light rays, the formation ofthe image, and labelling the pole, the centre of curvature, the principal focus, and theaperturewho will tell me the write ANSWER I will mark as brainlist |
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Answer» answer is above DIAGRAM |
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| 2019. |
D) Complete the following ray diagram by marking the path of light rays, the formation ofthe image, and labelling the pole, the centre of curvature, the principal focus, and theaperture |
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Answer» HOPE you like it please mark me BRILLIANT |
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| 2020. |
A wind turbine is used to power a generator. The wind turbine transforms kinetic energy into what form of energy?1)Gravitational energy 2)Electrical energy 3)Radiant energy 4)Thermal energy |
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Answer» ELECTRICAL ENERGY........ |
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| 2021. |
Which action best demonstrates the transformation of mechanical energy to heat energy and sound energy?1)stretching a string 2)squeezing a sponge ball 3)throwing a ball upwards in air 4)striking a hammer on a nail |
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Answer» Answer: 4. Striking a hammer on a nail Explanation: A tremendous amount of FORCE is applied over a SMALL area to generate very high stresses that are in the plastic zone. a high amount of thermal energy is generated and the LOCALISED disturbance of the air generates audible SOUND |
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| 2022. |
1. What is lightning? How does it occur?2. What do you mean by 'recharging ofgroundwater'? What happens if thegroundwater is not recharged? |
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Answer» Answer: lightening is a natural phenomenon in which the negative changes ELECTRON in the bottom of the cloud are attracted to the positive charges in the GROUND. ground WATER recharge or deep drainage or deep percolating is a hydrological PROCESS where water moves down from surface water to ground water. recharge is primary method though which water enters an aquifer. |
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| 2023. |
Short-answer questions1. Although the source of water is rain, whyis water from seas and oceans not fit fordrinking? |
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Answer» because seas ans oceans have a LOTS of salt in it that our body can't HANDLE |
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| 2024. |
Two cars starts off to race with velocity 2m/s and 4m/s travel in a straight line with uniform acceleration 2m/sand 1m /s respectively. whats the length of path if they reach the final point at the same time |
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Answer» USING S=ut +1/2at^2 The ANSWER is 24 METRES |
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| 2025. |
You are walking along east covering a distance of 4m ,then 4m towards West and at last 2m towards north .You cover the total distance in 21 seconds .what is your average speed and velocity?Answer with steps please. |
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Answer» speed=2.1m\s velocity=10.1m\s Explanation: distance=4M+4m+2m=10m time=21s speed =distance\time =10\21 =2.1m\s displacement=4m+(-4m)(CAUSE it is in OPPOSITE DIRECTION)+2m=2m time=21s velocity=displacement\time =2\21 =10.5 |
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| 2026. |
Thewei10. A car makes contact with the ground over an areaof 0.85 m2. What is the pressure exerted by thecar on the ground if the car exerts a force of9350 N on the ground?15. ALTh0. |
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Answer» Explanation: given aera = .85m² force = 9350N as we KNOW Pressure = force / aera then P = 9350/.85 so P = 11,000 PA the pressure exerted by the car on the ground is 11,000 pa hope it helps be brainly |
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| 2027. |
Use the formula a =( Vf - Vi)/t(a)A car travelling at 60 m/s accelerates to 90 m/s in 3 sec.What is the car’s acceleration? |
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| 2028. |
WORK AND ENERGYIf a motorcycle is moving in circular motion and stops at its initial point after moving 3 rounds can we say that the work is done . Give reasons for your answer. |
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Answer» if it STOPS on the same POINT frm where it began there will b no work DONE , reasons disp = 0 m .... disp = displacement ... |
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| 2029. |
Felt like being nicealso I have a questionWhat would be the absolute worst name you could give your child? just curious #2 |
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Answer» OO ＼(◎o◎)／(ﾉﾟ0ﾟ)ﾉ~¯\_ʘ‿ʘ_/¯ಥ‿ಥ pls MAKE me as brainlist ❤️ Friend |
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| 2030. |
Who are poachers?please answer me fast it's very urgent!!!!Don't search with goggle |
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Answer» Answer: Peoples who KILL animals ILLEGALLY in forest, national parks, WILDLIFE sanctuaries are called POACHERS. |
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| 2031. |
N8? (1) LPO N8, (III) - AS)1. একটি দড়ির সাহায্যে একটি বস্তুকে ঝুলিয়ে দেওয়া হল। যদি দড়িটিকে2 ms-2 ত্বরণে উপরের দিকে তােলা হয় তবে দড়ির টান তার অসহ-ভারের অর্ধেক। দড়ির সাহায্যে বস্তুটিকে কী ত্বরণে উপরের দিকে তুললেদড়িটি ছিড়ে যাবে?[Ans. 13.8 ms-2] |
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Answer» ৰৰদৰদদৰদপদলদদলদতলদলতললদতলতলতলত
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| 2032. |
*3. One litre is equal toO 1 cubic centimetreO 1000 cubic centimetreO 1 cubic metreO 1000 cubic metre |
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Answer» 1000 CUBIC centimeter |
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| 2033. |
6. A quantity that can be measured is known as aa.chemical quantityb.physical quantityc.known quantityd.measured quantity |
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| 2034. |
3.name the system that is based on cm-g-s.a.MKS systemb.FPS systemc.CGS systemd. SI system |
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Answer» Answer: c.CGS SYSTEM Explanation: The centimetre–GRAM–second system of units (abbreviated CGS or cgs) is a variant of the METRIC system based on the centimetre as the UNIT of length, the gram as the unit of MASS, and the second as the unit of time. |
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| 2035. |
2. which of the following is fundemental physical quantity?a.speedb.lengthc.aread.acceleration |
| Answer» LENGTH is FUNDAMENTAL QUANTITY | |
| 2036. |
Experiment is 'A Toy phone' made with plastic cups and 3 different lengths.How sound travels through various lengths which are long, medium and short threads/strings?Also, mention approximately the loudness of the voice and how clear the voice is. |
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Answer» Answer: 1. long-loud. 2. MEDIUM- louder. |
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| 2037. |
Effective resistance between a and b isplease answer this question correctly it is very urgent please... don't give wrong answers |
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Answer» abcdefghijklmnopqrstuvwwxyz |
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| 2038. |
4.Powder is sprinkled on the carom board toa) fix irregularities on the board surface and to reduce frictionb) make the surface more irregular and to increase frictionc) reduce fluid friction.d) make the board surface rough. |
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Answer» Answer: a Explanation: By sprinkling powder on carrom board,we can REDUCE the friction.It will MAKE the carrom coin to MOVE FREELY on the board |
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| 2039. |
3.Force can be measured by using aa) metre scale.c)thermometerb) spring balanced)rubber band |
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| 2040. |
What is difference in energy conservation in the bulb and in the tube light??Best answer I mark it as brainiest |
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Answer» In an incandescent bulb, electricity passes through a filament that gets so hot that it PRODUCES light. About 95% of the energy is wasted as heat, with only 5% of it going toward light. In CFL bulbs, an electric current FLOWS between two electrodes at the ends of a gas-filled tube coated in phosphor. |
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| 2041. |
WHICH IS THE ODD ONE IN THE FOLLOWING :-SQUARE , METRE , SQUARE KILOMETRE , HECTARE , LITRE |
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| 2042. |
1. A motorcar of mass 1200 kg is moving along a straight linewith a uniform velocity of 90 km/h. Its velocity is slowed downto 18 km/h in 4 s by an unbalanced external force. Calculatethe acceleration and change in momentum. Also calculate themagnitude of the force required. |
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Answer» ............................9991219799 |
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| 2043. |
D. Match the columns.1. Massa. relative density bottle2. Volumeb. lactometerc. Eureka can3. Sea breeze4. Density of milkd. physical balance5. Relative densitye. convection currents |
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| 2044. |
When we place an object between p and f of a concave mirror the hight of the image consider as... |
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| 2045. |
Solve this question please----------------------------------------------Answers in Picture Please---------------------------------------------- |
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Answer» Answer: sorry I am a RIDER top class I have done THREE RACING COMPETITION and I am winner |
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| 2046. |
A car's odometer reads 22687 km at the start of a trip and 22791 km at the end of the trip. If the triptakes 4 hours, find the average speed of the car in ms-!.(A) 5.20 ms-(B) 6.21 ms-(C) 7.22 ms-(D) 8.23 ms- |
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Answer» Answer: C 7.22 Explanation: 26 km/h 7.21 m/s speed = distance / time hence (22791-22687)/4=24 km/h now CONVERT the UNIT and you'll get 7.22222222...... hence 7.22 |
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| 2047. |
When we place an objectbetween P and F of a concavemirror ,the hight of the imageconsider as... |
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Answer» HOPE it helps |
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| 2048. |
Answer in three words1)list out the three basic conditions required for anelectric current to flow |
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Answer» Answer: To PRODUCE an electric CURRENT, three THINGS are needed: a supply of electric charges (electrons) which are free to flow, some FORM of push to MOVE the charges through the circuit and a pathway to carry the charges. The pathway to carry the charges is usually a copper wire. |
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| 2049. |
Find the particalunits used in thesituation given below.1.Length of the pen2.Length of the dhoti3) Distance fromThiruvanathapuramto Kollom |
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Answer» Answer: |
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| 2050. |
While in a degree Celsius scale it is (212 CV)Cheezing point/boiling point) of water is used as the upper fixed pointon me Celsius scale |
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Answer» Answer: The UPPER fixed point in the CELSIUS scale is 100 0 C, which is the boiling point of water. Explanation: HOPE IT HELPS MARK ME AS BRAINLIEST PLSSS.... |
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