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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. |
Describe the motion of an object in which it is its speed is constant but the velocity is changing |
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Answer» Answer: Explanation:To SUMMARIZE, an object moving in uniform circular motion is moving AROUND the perimeter of the circle with a CONSTANT speed. While the speed of the object is constant, its velocity is changing. Velocity, being a VECTOR, has a constant magnitude but a changing direction. |
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| 2. |
A body starting from rest travels with uniform acceleration. if it travels 100 meters in 5 seconds then what is the value of acceleration |
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Answer» Answer: 8 m/s square Explanation: Given, Initial velocity (u) = 0 Distance TRAVELLED (s) = 100 m Time taken (t) = 5 seconds Find, What is the VALUE of acceleration. Solution, USING the equation of motion, s = ut + 1/2at², it can be SUBSTITUTED by- 100 = 0 + 1/2a × 5× 5 100= 1/2a × 25 1/2a = 100/25 1/2a = 4 Therefore a (acceleration) = 4 × 2 = 8m/s square. |
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| 3. |
SIISAun1. The distance of a mass from the earth'scentre, where the net gravitationalforce by the earth and moon is zero,will be (distance between the earth andmoon = 4.0 x 105 km)ke 3.9 105 km(6) 4.6 x 106 km(c) 3.2 x 106 km (d) None of the above room |
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| 4. |
Stethescope of doctors for finding quality, strength and frequency of human heart beat is based on theprinciple of |
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Answer» Answer: Stethescope of doctors for finding quality, strength and frequency of HUMAN HEART beat is BASED on the principal of MULTIPLE reflection. |
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| 5. |
Help please............... |
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| 6. |
How much protein powder should a 16 yeat old (42kg) he must take if he had started gyming |
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Answer» Answer: Hope it helps you... A 16-year old BOY (42 Kg) needs about 45-50 g of protein a day. Please mark as BRAINLIEST if it really helps you...❤❤❤ |
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| 7. |
2.How should two resistors with resistances R1 ohm and R2 ohm be connected to a battery of emf V volts so that the electric power consumed is maximum? |
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Answer» Answer: Resistors should be CONNECTED in parallel to get get maximum electric power consumed. electric HEATER of 2 KWH used for HALF an hour DAILY. |
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| 8. |
A car moves with a speed of 30 km/h–1 for half an hour, 25 km/h–1 for one hour and 40 km/h–1 for two hours. Calculate the average speed of the car. |
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Answer» Answer: The anwer is in the image given. formula avg SPEED=(v1+v2+v3)/total time |
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| 9. |
A pump lifts 200 kg of water to a height of a 50 m in 10 second. the power of pump is |
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Answer» Answer: To solve for the power of the pump is to insert the given data to this FORMULA Power = Work/time or Power = mgh/time Power = mgh/time Power = 200 kg * 10 m/s^2 * 6 m / 10 s Power = 12000 joules / 10 s Power = 1200 joules per second Power = 1200 watts Explanation: MARK as brainlist |
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| 11. |
8. A wire whose resistance is 40 is cut intothree pieces of equal lengths which are thenjoined in parallel. Calculate the resistanceof the combination |
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Answer» Explanation: LENGTH is directly PROPORTIONAL to resistance so when the wire is cut into 3 parts the resistance ALSO becomes 1 by 3 TIMES therefore the resistance of each SMALL part is 40/3 As they are connected in parallel effective resistance =40/3/3=40/9 I hope that the answer is clear............. |
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| 12. |
An object is placed at a distance of 30 cm from a convex lens of focal length 20 cmfind the position of the image Is the image real or inverted Is the images that are inverted |
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Answer» YES image is real and inverted and image is greater than object. image is s formed BEYOND the 2 f. |
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| 13. |
the electric force between two portions is ______ times the garvitational force between them for any fixed didtance |
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Answer» COULOMB's law, or Coulomb's inverse-square law, is an experimental law of PHYSICS that quantifies the AMOUNT of force between two stationary, electrically CHARGED particles. The electric force between charged bodies at rest is conventionally called electrostatic force or Coulomb force. |
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| 14. |
a particle traversed an angle √ / 2 along circular path in 1 second what is angular speed of particles if motion is uniform circular motion |
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Answer» oooommmmggggg FOLLOW me |
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| 15. |
1)________ is usually performed by living organisms duringfavourable conditions that is availability of abundant food material |
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Answer» ANSWER: I think most of the ORGANISMS CONSERVE food material like ANTS and human BEINGS.
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| 16. |
3. With the decrease in the volume of a gasits pressure increases. |
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Answer» Answer: When the volume DECREASES, the pressure increases. This shows that the pressure of a gas is inversely proportional to its volume. This is shown by the following equation - which is often CALLED BOYLE's law. |
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| 18. |
Which is not a element 1) alloy 2) non metal3) metalloids 4) alloys |
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Answer» Explanation: 1) ALLOY as it's a mixture pls MARK BRAINLIEST |
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| 19. |
A block of mass 4 kg is pushed against an ideal spring of force constant 1200 N/m compressing it 10 cm. When released from rest it slides 4 m until it stops along a rough horizontal surface. The work done by friction is? |
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| 20. |
Three resistance R1,R2,R3 are connected in series find their equivalent resistance? |
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Answer» R1+R2+R3=RS Explanation: that is TOTAL resistance Rs |
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| 21. |
What is Electrical Grid? |
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Answer» An electrical grid, electric grid or POWER grid, is an INTERCONNECTED network for delivering electricity from PRODUCERS to consumers. hope it HELPS you |
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| 22. |
In Power triangle which components are given? |
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Answer» A POWER TRIANGLE has four PARTS: P, Q, S and θ. The THREE elements which MAKE up power in an AC circuit can be represented graphically by the three sides of a right-angled triangle, in much the same way as the previous impedance triangle. |
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| 23. |
the time period of a simple pendulum depends on its length and acceleration due to gravity . find the expression for time period. (take K=2pie) |
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Answer» Answer: To investigate and DETERMINE the factors on which time PERIOD of simple pendulum depends The time period Of oscillation of a simple pendulum depends on the following quantities Length of the pendulum (l), MASS of the BOB (m), and Acceleration due to gravity (g) DERIVE an expression for Using dimensional method Explanation: Sorry for inconvenience no time to solve Hope it will help u |
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| 24. |
The amount of force acting per unit area is |
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Answer» Answer: The AMOUNT of force ACTING per unit AREA is PRESSURE Explanation: Pressure= Force/Area pls mark my answer as BRAINLIEST |
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| 25. |
Please solve these questions and send me photo |
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Answer» Answer: 1) Explanation: 2x-5=7 2x=7+5 2x=12 x=12/2 x=6 . . |
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| 26. |
The speed - time graph of a car is given here. Using the data in the graph calculate the total distance covered by the car.CBSE Class 9 Science MCQs Chapter 8 Motion(a) 1250 m (b) 875 m(c) 1500 m (d) 870 m |
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Answer» d) is the answer of your QUESTION |
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| 27. |
A ball of 100g of mass is moved with 10/m/s , and decrease with 5m/s in 5 seconds due to air friction so force of friction due to air isa. 1NB. 2NC . 0.1 ND. 10N |
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| 28. |
A uniform horizontal beam, pivoted at its right-hand end, is in equilibrium. A force of 60 Nacts vertically upwards on the beam as shown.60N20 cm30 cmpivotweightof beamWhat is the weight of the beam?(A) 36 N(B) 90 N(C) 40 N(D) 100 N |
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| 29. |
A vector between points 11 and 34 can be represented by |
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Answer» Answer: FUN facts about the meeting ☺️ ulk6575dysfdtdtkdtktryfg Katie gf don't know the answer is YES Explanation: dh&d6ek do this to you have any QUESTIONS or CONCERNS please visit the plug-in settings and one of the answer is yes then please let me know if you have any questions or |
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| 30. |
a body of mass 20 kg moving with a velocity 4 meter per second and find the magnitude of force needed so that the velocity becomes 1 meter per second after traveling a distance of 20 meters |
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| 31. |
How can we easily solve the problem related to laws of motion.. |
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Answer» Answer: While solving any PROBLEM on Newton's LAWS of motion, we make use of free body diagrams. In these diagrams we represent all the external FORCES acting on the object and then apply newton's second law to find its acceleration and other parameters. Explanation: Please mark me as a braniliest I will definitely follow YU |
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| 32. |
अक्षय ऊर्जा का उदाहरण कौन सा नहीं है ...।अक्षय ऊर्जा का उदाहरण कौन सा नहीं है ...। |
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Answer» தமிழில் தேடுங்கள் अक्षय ऊर्जा का उदाहरण कौन सा नहीं है ...। अक्षय ऊर्जा का उदाहरण कौन सा नहीं है ...। SEARCH Results Featured SNIPPET from the web  अनवीकरणीय ऊर्जा नवीकरणीय उर्जा या अक्षय उर्जा (अंग्रेजी:RENEWABLE ENERGY) में वे सारी उर्जा शामिल हैं जो प्रदूषणकारक नहीं हैं तथा जिनके स्रोत का क्षय नहीं होता, या जिनके स्रोत का पुनः-भरण होता रहता है। सौर ऊर्जा, पवन ऊर्जा, जलविद्युत उर्जा, ज्वारीय उर्जा, बायोमास, जैव इंधन आदि नवीकरणीय उर्जा के कुछ उदाहरण हैं। |
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| 33. |
Resultant of two forces a right angle is 17 Newton the maximum resultant 23 the greater forces is |
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Answer» UzulrzysKueyrstek6elayelLlyeae6Lrue6a74a yaurztywlyeeurt |
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| 34. |
Please solve fastA piece of lead weights 100g in water. If density of lead is 11gcm −3, then the weight of the piece of lead in air is |
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Answer» then CHANGE to kgcm³ |
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| 35. |
Calculate the height of liquid column which produces s a pressure of 8Pa RD of liquid is 8 |
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Answer» #The PRESSURE exerted by a liquid depends on the height of the liquid column. We KNOW that pressure can be also written as P=ρgh Where H is height and ρ is density. Now as the height increases , pressure will also INCREASE. #ATQ,, P = ρgh h = P/ρg h = 8/8×10 h = 0.1m...... Is it helpful?? If Yes!! then mark it BRAINLIEST...... |
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| 36. |
calculate then resistance of 1 km long cableof 19 stands of similar copper conductors. area of cinductor1.5 sqmm |
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Answer» Answer: SORRY don't know Wright now please FOLLOW me |
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| 37. |
Two train 120m and 80m in length are running in opposite direction with velocities 42 km/hr and 30km/hr. In what time they will completely cross each other |
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Answer» Answer Total displacement , d = 120 m + 80 m ⇒ d = 200 m Relative VELOCITY , v = 42 km/h + 30 km/h ⇒ v = 72 km/h = 20 m/s Time , t = ? s We know that Speed is defined as velocity per time So , Time = 10 s |
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| 38. |
What is the forces between the like charge and unlike charge |
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Answer» ATTRACTION and REPULSION FORCE |
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| 39. |
E.Applefallingfromtree,rowingofboats,rotationofturbine,ballrollingonthefloor, odd one out |
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Answer» Answer: i THINK APPLE falling my from the tree is the odd one PLEASE make me brainliest because I have to GO to the NEXT rank |
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| 41. |
The diagram below shows four charges of magnitude Q placed at the centre of a square of side A. If the potential at a distance "a" from any of the charges is V, the potential at the centre P is |
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Answer» Answer: |
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| 42. |
A uniform electric filed E is established in the space between two large parallel plates. A small conducting sphereof mass m is suspended in the field from a string of length L. Time period of this pendulum when the sphere isgiven a charge + is. |
| Answer» MARK me BRAINLIST PLEASE ........ | |
| 43. |
What is the Formula of power factor? |
Answer» Hey buddyExplanation: Power factor (PF) is the RATIO of working power, measured in kilowatts (kW), to apparent power, measured in kilovolt amperes (kVA). Apparent power, also KNOWN as demand, is the measure of the amount of power used to run machinery and equipment during a certain period. It is found by MULTIPLYING (kVA = V x A).Mark as brainlistGive a LIKE |
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| 44. |
Which among the following statements is correct? A heavier body has a larger inertia than a lighter body A lighter body has a larger inertia than a heavier body Inertia of a body does not depends on mass of body Inertia is the ability of a body to change its state of rest or of uniform motion on its own |
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Answer» Inertia of a body does not depends on MASS of body Explanation: Here is your answer MARK as brainlist |
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| 45. |
PLS HELPMEEEEEEEEEEEEEEEE |
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Answer» A and B Explanation: |
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| 46. |
Two cars Aand B; A' starts fromRest and has constant accelerationof 4 m/s2whilecay B has constantVelocity of 12m/s. Draw① velocity - time graph.2 displacement time graph |
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Answer» Explanation: |
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| 47. |
Where is the neutral zone of magnet located? |
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Answer» Explanation: A SHORT bar magnet is kept along the MAGNETIC meridian with its north pole POINTING north. A neutral point is LOCATED at a DISTANCE d from the centre. |
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| 49. |
If the moon attracts the earth why does the Earth not move towards the moon |
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Answer» The moon ATTRACTS the earth with the same GRAVITATIONAL force as the earth attracts the moon. ... Since the mass of earth is very large, the acceleration produced is negligible. Therefore, the earth does not move TOWARDS the moon. |
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| 50. |
If the resistance of a coil is 2 ohm at 0 degree celcius and a=0.004 degree celcius, then its resistance at 100degree celcius is |
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Answer» Answer: Given, R T =4.2ohm T=100 0 C α=0.004/ 0 C T 0 =0 0 C ΔT=T−T 0 =100−0=100 0 C The RESISTANCE, R T =R 0 (1+αΔT) R 0 = (1+αΔT) R T
R 0 = (1+0.004×100) 4.2 =3Ω The CORRECT option is A. |
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