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 mass of an electron is about 1/2000 times that of proton |
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Answer» ong>ANSWER: Electrons are extremely small. The MASS of an electron is only about 1/2000 the mass of a proton or neutron, so electrons contribute virtually nothing to the total mass of an atom. Electrons have an ELECTRIC charge of −1, which is equal but OPPOSITE to the charge of a proton, which is +1. |
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| 2. |
A man made fibre having silky texture |
| Answer» ONG>Answer: | |
| 3. |
Derive the expression for equivalent EMF and internal resistance when two cells connected in parallel |
| Answer» HEN, that's the EXPRESSIONS. | |
| 5. |
State and prove law of conservation of linear momentum. Give one of itsapplication |
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Answer» ervation of linear momentum, general law of physics ACCORDING to which the quantity called momentum that characterizes motion never changes in an isolated collection of objects; that is, the total momentum of a system remains constant. Conservation Of Linear Momentum Example Two bodies of mass M and m are moving in opposite directions with the velocities V. If they collide and move together after the collision, we have to find the velocity of the system. Since there is no EXTERNAL force acting on the system of two bodies, momentum will be conserved. I hope it is helpful to you my dear friend and if it is helpful to you my dear friend so please follow me mark me as a brilliant and like my ANSWERS |
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| 6. |
State the rule to find the direction of magnetic field associated with straight current Carrying conductor. |
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Answer» ong>Answer: It states that if you holding the CURRENT-carrying conductor in your RIGHT hand such that the thumb points in direction of the current, then the direction in which the FINGERS encircle, gives the direction of magnetic LINES. This rule is also called MAXWELL's Corkscrew Rule. |
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| 7. |
Define velocity. Also state it's SI unit? |
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Answer» ong>Explanation: The meaning of velocity of an OBJECT can be defined as the RATE of CHANGE of the object’s position with RESPECT to a frame of reference and time.it's si unit is m/s |
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| 8. |
A body having uniform acceleration of 10ms^(-2) has a velocity of 100ms^(-1). In what time, the velocity will be doubled? |
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Answer» ong>Answer: Accelerarion (a)=10m/s^2 Final velocity(V) =100m/s It is understood that INITIAL velocity (u)= 0 According to the first kinematical equation, v = u +at 100 = 0+10t t=100/10 t=10 s…….(1) Similarly, When v is doubled= 2v =2×100= 200m/s, v=u +at 200= 0 +10t t= 200/10 t=20 s …..(2) THEREFORE, time taken to double the velocity =20 -10 =10 s Hence, the time taken to double the velocity is 10s. |
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| 10. |
CH3(CH2)2[C(CH(CH3)2]2(CH2)2CH3 identify the name |
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Answer» ONG>EXPLANATION: carbohydrates because carbon with TETRA hydrogen |
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| 11. |
Reflections on concepts1. What information do you get from a balanced chemical equation? (AS) |
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Answer» ong>Answer: A balanced chemical equation GIVES the identity of the reactants and the PRODUCTS as well as the ACCURATE number of MOLECULES or moles of each that are consumed or produced PLEASE MARK AS BRAINLIEST |
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| 12. |
The range of projectile is 300 m for an angle of projection of 30°, if the angle of projection isdoubled, then the range of the same projectile willbea. 100 mb. 200 mc. 600 md. 300 m |
Answer» ONG>Answer:
Explanation: because if we double the ANGLE of projection then the DISTANCE also DOUBLED |
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| 13. |
A hydraulic lift is designed to lift heavy objects of maximum mass 2000kg. the area of cross section of piston carrying the load is 2.25× 10 raised to -2 m square what is the maximum pressure the smaller piston would have to bear? |
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Answer» Pressure is TRANSMITTED EQUALLY ACCORDING to Pascal's law. |
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| 14. |
The ratio of dimensions of planck's constant and that of momentum of inertia has dimensions of |
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Answer» nsion of FREQUENCY. |
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| 15. |
Hyy tell this answer!!! |
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Answer» ong>Answer:
The resistance of a conductor DEPENDS on
hope it helps thank my answers and MARK as brainliest |
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| 16. |
Define 1) Newton second law2)Ineetia3) Newton first law |
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Answer» ong>Answer: In the first LAW, an object will not change its motion UNLESS a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal MAGNITUDE and OPPOSITE direction. mark as brainliest answer... |
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| 17. |
What is gravity of earth? |
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Answer» ONG>Answer: 9.807 m/s² Explanation: The precise strength of EARTH's gravity varies depending on LOCATION. The nominal "AVERAGE" value at Earth's surface, known as standard gravity is, by definition, 9.80665 m/s2. |
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| 18. |
5. .........Weight of an object is the measure of acting on it(a) muscular force (b) frictional force(c) force of gravity (d) magnetic force6. The pressure exerted by a liquid:(a) increases with depth(b) decreases with depth(c) remains constant everywhere(d) can't say7. A force is applied to an object in thedirection of its motion, its speed will:(a) increase(b) decrease(c) remains same (d) can't say8. Two forces are acting on an object inopposite directions. What will be themagnitude of resultant force?(a) Sum of both the forces(b) Difference of both the forces(c) Product of both the forces(d) None of these9. Is there any force acting on an object kepton a table?(a) No(b) Yes. Friction force(C) Yes. Friction force and force of gravity(d) Yes. Friction force, force of gravityand push exerted by table on the object2 VERY SHORT ANSWER QUESTIONS:1. ..........is used to measureweight of a body |
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Answer» ONG>EXPLANATION: आई डोंट नो डांसर एंड आई एम सॉरी फॉर दैट एंड कैन यू प्लीज फॉलो मी प्लीज प्लीज प्लीज एंड आई एम रियली रियली सॉरी बट आई कांट दिव्यांश आई एम रेली सॉरी |
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| 19. |
The pressure of gas molecules in a vessel is P. if the mass of each molecule is made one fourth and the RMS speed is doubled the new pressure is |
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Answer» ong>Answer: , Explanation: |
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| 21. |
What do you understand by human skeletal systems |
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Answer» ong>Answer: The skeletal system works as a support structure for your body. It GIVES the body its SHAPE, allows movement, makes BLOOD cells, provides protection for organs and stores minerals. The skeletal system is also called the musculoskeletal system Explanation:
MARK as brainliest answer |
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| 22. |
CHOOSE Odd one out and give reasson. kg,g,mg,s |
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Answer» ong>ANSWER: hete is ur ans ans = s hope it hepls U |
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| 23. |
What effects can a force product on a body which is not allowed to move? |
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Answer» ALIGN="absmiddle" alt="\huge\bf\blue{Answer:-}" class="latex-formula" id="TexFormula1" src="https://tex.z-dn.net/?F=%5Chuge%5Cbf%5Cblue%7BAnswer%3A-%7D" title="\huge\bf\blue{Answer:-}"> When a force is applied on a body which is not free to MOVE, it gets DEFORMED i. E., the shape or size of the body changes..... |
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| 25. |
Magnetic field lines never intersecteach other. Why? |
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| 26. |
The transfer of heat due to the movement of particles of the medium. |
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Answer» ONG>ANSWER: The phenomenon due to which particles of a medium actually move to the source of HEAT ENERGY and on absorbing heat energy, move away from it THEREBY making space for other particles to move to the source of heat energy is called convection. |
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| 27. |
Children can Explain in their own words why do we call concave mirror and convex mirror as spherical mirror physical science |
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Answer» ONG>EXPLANATION: because of they have spherical in shape so we are called as CONCAVE MIRROR and convex mirror as spherical mirror |
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| 28. |
List the requred material of perform an activity to demonstrate the force of friction and write the procedure |
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Answer» er:What materials cause friction? Friction is the resisting force between two objects sliding against each other. When we rub our hands together on a cold day it is friction that PRODUCES the heat. What happens when you try to WALK on ice? You can walk slower to MAINTAIN balance or slip. This occurs because there is little friction between the sole of your shoe and the ice. Friction is a necessary force in our world. Without it we would not be able to walk or hold objects in our hands. In this experiment we will examine the nature of friction and how various materials affect movement. 2" x 4" x 4" block of wood 1" x 8" x 36" wood board Ruler or yard stick Stop watch Various TYPES of material to test: wood, aluminum foil, cotton cloth, rubber, OIL, etc. Explanation: |
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| 29. |
Where do you think the body will weigh more, in air or vacuum? Give reason for your answer. |
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Answer» ong>Explanation: The simple reason is that air is made of MANY constituents. When a BODY is weighed in air the buoyant force of the air will REDUCE its WEIGHT. Contrarily, in VACUUM there would be no such force, thus the weight of a body would be more, though negligible. FOLLOW ME PLEASE... |
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| 30. |
How to read the thermometer |
Answer» ONG>Answer:Hold the Thermometer at Eye Level. You must hold the thermometer at the end of the stem, not the bulb end. (If you held the bulb end, your body heat could cause the temperature READING to increase if the temperature of your fingers is greater than the temperature shown on the thermometer.)Explanation: HOPE it helps you mate PLEASE MARK ME AS THE BRAINLEST PLEASE |
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| 31. |
Can anyone please provide me the brief details of Relativity and about light?? |
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Answer» ong>Answer: the dependence of VARIOUS physical phenomena on relative motion of the observer and the observed objects, especially REGARDING the nature and behaviour of light, space, time, and gravity. Light, or VISIBLE Light, commonly refers to electromagnetic radiation that can be detected by the human eye. ... Light can also be described in TERMS of a STREAM of photons, massless packets of energy, each travelling with wavelike properties at the speed of light. Thank you and please follow me.. |
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| 32. |
Force of attraction between two point charges each of 2columb sepated by 10m in air |
| Answer» ONG>ANSWER: | |
| 34. |
Magnetic field lines never intersect each other. Why? |
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Answer» ong>Answer: The TWO MAGNETIC field lines do not intersect each other because if they do it means at the point of INTERSECTING the compass needle is SHOWING two different directions which are not possible Explanation: I hope it HELPS you ☺️ please make me as Brainliest |
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| 35. |
Is the image of a pin hole camera blurred? |
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Answer» ONG>ANSWER: The light is refracted more through the pinhole. The image is darker, so you can't see the blurred regions. The light HITTING each point in the image plane comes from a narrower range of POINTS in the scene. |
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| 36. |
മലയാളം അർത്ഥം (മഥി ) |
Answer» ONG>Answer:CAN'T UNDERSTAND THIS TELUGU LANGUAGE, PLEASE WRITE THIS QUESTION IN ENGLISH.PLEASE MARK ME AS BRAINLIEST. |
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| 38. |
frequency of vibration of string depends on length of the string , tension in the string and linear dencity of string. Obtain relation between them using dimensional analysis. |
| Answer» ONG>ANSWER: | |
| 39. |
if a copper wire of resistivity 1.6× 10*-8 ohm meter has cross section area of 10.3 ×10*-4 cm*2 calcute the length of wire required to make a 20 ohm resistance |
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Answer» ong>Answer: R=10Ω A=10×10 −8 m 2
ρ=1.6×10 −8 Ω/m We KNOW that, R=ρ A l
l= ρ RA
= 1.6×10 −8
10×10×10 −8
l=62.5m |
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| 40. |
Reflections on concepts1. What information do you get from a balanced chemical equation? (AS,) |
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Answer» ong>Answer: search in google u get the answer realllyPLS mark me as BRAINLIST |
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| 41. |
What is the other name for Newtown's first law of motion |
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Answer» ong>ANSWER: Law of INERTIA . MARK as brainliest |
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| 42. |
1. Using Superposition Theorem, find the voltage across 3 ohms resistance. (5 marks) 406VWw14 V)30202622 |
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Answer» ong>ANSWER: ★彡 •♥•♥•♥ PLEASE MARK ME AS BRAINLEAST ♥•♥•♥• 彡★˙·٠•●♥ PLEASE FOLLOW ME ♥●•٠·˙ |
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| 43. |
explain the meaning of the apparent expansion of a liquid?How is the apparent expansion related to the real expansion of the liquid? |
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Answer» ong>Answer: The real expansion of LIQUID is always more than the APPARENT expansion ofliquid. The fall in the level of liquid from L1 to L2 is actually equal to the increase in in the VOLUME of flask. Expansion ofliquid = Apparent expansion of liquid + Volume expansion of container. Explanation: ✌️✌️✌️ |
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| 44. |
1. A cat is moving at 18 m/s when it accelerates at 4 m/s^2 for 2 seconds. What is her new velocity? |
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Answer» ONG>ANSWER: u=18m/s a=4m/s² t=2s v=? v=u+at v=18+4×2 =18+8 =26m/s |
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| 46. |
When a sphere of mass 5 kg strikes a wall with a velocity of 5 m/s, it rebounds with the same velocity: (a) What is the momentum of the sphere before striking and after rebounding? (b) Also find the change in momentum of the sphere? |
| Answer» ONG>ANSWER: | |
| 47. |
Bernadette traveled from home to her school. She took 75 m east and 25 m north. What will be the total displacement from home to school? |
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Answer» ong>Answer: 79m APPROXIMATELY the following situation diagramatically makes a RIGHT ANGLE triangle base =75m altitude =25m by using Pythagoras THEOREM total displacement =hypotenuse hypotenuse ²=75²+25²=5625+625 =6250 = 79m approximately |
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| 48. |
26. Speed of a motor bike is 20 m/s. How much distance will it cover in 35 seconds? 27. A piece of iron of mass 114 g, has a volume of 15 cm!. Express the density of iron. |
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Answer» ONG>Answer: 26) speed = 20 m/ s time = 35 secs speed = DISTANCE /time = 20 × 35 = 700M |
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| 49. |
What is the volume of a storage tank which will hold 3200kg of petrol |
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Answer» ong>Answer: |
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| 50. |
Give three examples to explain that motion is relative. |
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Answer» ong>ANSWER: The person sitting in the bus will find that the tree are moving but the person standing outside of the bus will find that the PASSENGERS in bus are moving. The passenger find that the person sitting NEXT to him is in rest . This is HOE the motion is relative in nature. |
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