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. |
How do I go about this |
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Answer» by the OHM's LAW u can verify the ANSWER QUICKLY it will helps UIN this law V/I is the CONSTANT |
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| 2. |
How do the size and shape of a musical instrument affect the pitch? |
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Answer» st is about actual PITCH, and the simplest answer is that the shorter the instrument's FUNCTIONAL tone-producer-- the string on a violin or GUITAR, the length of the "air-tube" on a WIND instrument, etc. -- the HIGHER the pitch. |
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| 3. |
Write your question here (Keep it simple and clear to get the best answer) Is rolling wheel of bicycle uniform motion ? |
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Answer» NoExplanation:An object is in uniform MOTION when it covers the same distance in equal INTERVAL of time.Object does not change DIRECTION too.While in ROLLING WHEEL OF BICYCLE, it covers the same distance in equal interval of time but it does change its direction |
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| 4. |
Image formation derivation |
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Answer» mzkzmxnzmz. Z X NX. z nznkzkzExplanation:knxbzz. SKMS nsnnzzn mzmz |
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| 5. |
Elevation in transverse wave |
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Answer» When a transverse wave TRAVELS horizontally in a medium,the particles of medium vibrate up and down in vertical direction. When the vibrating particle move upward,above the LINE of ZERO disturbance,they FORM elevation or hump(crest)and when they move downward,they form depression or hollow(TROUGH). |
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| 6. |
If the area of cross section of pipe increase,the velocity of the flow of liqid? |
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Answer» Will decreaseExplanation:Use theory of CONTINUITY. A1V1 = A2v2 where AREA and velocity are inversely proportional. U can notice this in your general life, WATER comes with less velocity through a big size pipe. |
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| 7. |
Speed of a train increases from 36km/h to 72 km/h in 10 minutes. Find the distance moved by train during this time. |
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Answer» vi = 36km/hr = (36×1000)/3600 = 10m/s vf = 72km/h =(72×1000)/3600 = 70m/st = 10 MINS = 10 × 60 = 600seca= ??∵ a=(vf-vi)/TA= (20-10)/600a= 10/600a= 1/60m/s×s ∴s=vit+1/2at²s=10×600+(1/2)(1/60)(600)²S=6000+(1/120)(360000)S=6000+3000S=9000mExplanation:For find distance we should find acceleration first then can be find distance with 2nd equation of MOTION. |
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| 8. |
What is garvitational force |
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Answer» tion:Gravity, or gravitation, is a NATURAL phenomenon by which all THINGS with mass or energy—including planets, stars, GALAXIES, and even light—are brought toward ONE another. On Earth, gravity gives weight to PHYSICAL objects, and the Moon's gravity causes the ocean tides |
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| 9. |
F forms ionic bond with Na but it forms covalent with H. |
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Answer» tion:as h and F are both non metals and they don't GIVE out their ions so they form COVALENT bond while na forms IONIC bond |
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| 10. |
What is the acceleration produced by a force of 5N acting on a mass of 10 kg:(a) 50m/sec (b) 0.1m/sec (c) 0.5m/sec (d) none of theseSECTION |
| Answer» OPTION C) 0.5m/sec USE the FORMULA F=ma ..:) | |
| 11. |
19. Five resistors, each of 3 ohm are connected as shown in Fig 8.50. Calculate the resistance (a) between thepoints P and Q, and (b) between the points X and Y.322232302322302 |
| Answer» TION:Where are points X and Y? To simplify,PQ has 2 resistors of 3 ohm connected in series, the resultant of which is connected in PARALLEL to another 3 ohm resistor.R net = R1 + R2 in a series=> R net = 3 + 3= 6 ohms Now we have this 6 ohm resistor connected in parallel with a 3 ohm resistor. R net = [ 1/R1 + 1/R2 ]^-1= [ 1/6 + 1/3 ]^-12 ohms Hence the resistance between points P and Q is 2 ohms. Assuming that the points X and Y are including the other 2 resistances of 3 ohms each, the resistors 3 ohms 2 ohms and 3 ohms are in series Hence the total resultant resistance ( bet. X and Y) = 2 + 3 + 3= 8 ohms | |
| 12. |
अगर एक चालक मैं 1 माइक्रो ऐम्पियर धारा का प्रवाह होता है , तो एक सेकण्ड में प्रवाहित इलेक्ट्रॉनों की संख्या हैं । |
| Answer» TION:PLEASE WRITE the QUESTION in ENGLISH | |
| 14. |
When is the world water day |
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Answer» On 22 MARCH every year World Water Day is celebrated around the world to CREATE the awareness about the IMPORTANCE of water and its conservation.MARK ME AS THE BRAINLIEST ANSWER |
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| 15. |
Elements in the same group/family of the periodic table are similar in what way? |
| Answer» TION:elements belonging to the same GROUP have the same valence ELECTRONS in their OUTERMOST shell THEREFORE elements belonging to the same group have same valency . | |
| 16. |
Calculate the refractive index of the material of a glass slab. Giventhat the speed of light through the glass slab is 2 x 10 ki 8 m/s and inair is 3 x 10 ki power 8 m/s. |
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Answer» tion:Given Calculate the refractive index of the MATERIAL of a glass slab. Given that the speed of LIGHT through the glass slab is 2 x 10 KI 8 m/s and in air is 3 x 10 ki power 8 m/s Given speed of light through glass slab is 2 x 10^8 m / s Speed of light in air is 3 x 10^8 m/s We need to find the refractive index of a glass slab. We know that refractive index μ = Speed in air / speed in MEDIUM = 3 x 10^8 / 3 x 10^8 = 3/2 = 1.5 So the refractive index of the material of the glass slab is 1.5 Reference link will bebrainly.in/question/15760879 |
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| 17. |
For what relative speed the mass of electron becomes double to its rest mass |
| Answer» RELATIVE SPEED IIS HIGH because MASS is High | |
| 18. |
Why should net force be zero to make it moving? |
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Answer» after the object starts its motion, if we KEEP on supplying forceequal to the KINETIC FRICTION then the body MAINTAINS its velocity. so after the body attains a velocity anet zero force can keep the object at a constant velocity. If the body is not accelerating then the SUM of the forces in all directions is zero. |
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| 19. |
Negative or positive, uncertain. zero.A planet is revolving around a star in a circularorbit of radius R with a period T. If thegravitational force between the planet and thestar is proportional to R-3/2, then T² |
| Answer» PUBG is REAL chemestir is FALTU | |
| 20. |
two converging lenses of equal focal length one metre are placed in contact what will be the power of the combination |
| Answer» POWER is same and will be ADDED for the COMBINATION EXPLANATION: | |
| 21. |
17. Calculate the equivalent resistance between thepoints A and B in Fig. 8.48. |
| Answer» SENDING an ATTACHMENT | |
| 22. |
A planet is revolving around a star in a circular orbit of radius R with a period T. If thegravitational force between the planet and thestar is proportional to R 2, then [Oct 131 |
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| 23. |
What does principal quantum number signify |
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Answer» The principal quantum number, n, describes the energy of an electron and the most probable distance of the electron from the NUCLEUS. In other WORDS, it REFERS to the SIZE of the orbital and the energy LEVEL an electron is placed in. |
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| 24. |
Two lens of power 2.5D and -1.5D are placed in contact with each other what will bhe the power of thik combination |
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Answer» the POWER will be 1dioptre |
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| 25. |
What do you mean by electromagnetic induction? |
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Answer» the magnetic field created when magnet is BROUGHT NEAR a CURRENT carrying conductorplease mark it as a BRAINLIEST ANSWER |
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| 26. |
16. Calculate the effective resistance between the points A and B in the network shown below in Fig. 8.47. |
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Answer» an see there is 5 RESISTANCEAND we have to calculate the total resistance Assume first point as R1 and then it continues to R5.As we can see that there is PARALLEL COMBINATION lying betweenso,1/R6=1/R2+1/R3+1/R41/R6=1/12+1/6+1/41/R6=6/121/R6=1/2R6=2ohmnow ,total resistance between A and BR7=R1+R6+R5R7=2+2+5R7=8ohmHope this ANSWER help you! |
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| 27. |
How can you increase the frequency of a stringed musical instruments? |
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Answer» By INCREASING the TENSION of the strings.PLS MARK IT BRAINLIEST! |
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| 29. |
A body of mass 2 kg is acted upon a force of 1 n find its acceleration |
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| 30. |
Which elements belong to calcogen family |
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Answer» The Oxygen Family (The Chalcogens) The oxygenfamily, also CALLED the chalcogens, consists of the ELEMENTS found in Group 16 of the PERIODIC table and is considered among the main group elements. It consists of the elements oxygen, sulfur,SELENIUM, TELLURIUM andpolonium |
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| 31. |
Stone of mass 2kg which drops from the top of a Cliff and takes 2sect to strike the ground.calculate the kinetic energy of the stone when half way down |
| Answer» BALANCE of the answer is unavailable due to some technical errors please come BACK LATER and COOPERATE with us | |
| 32. |
Velocity of sound in air is depends upon |
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Answer» It DEPENDS UPON TEMPERATURE, DENSITY of the AIR |
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| 34. |
A circuit consists of a resistor of l ohm in series with a parallel arrangement of resistors of 6 ohm and3 ohm. Calculate the total resistance of the circuit.Draw a diagram of the arrangment. |
| Answer» TION:I HOPE it'll be of HELP to you | |
| 35. |
A car starting from rest, moves in a straight line with constant acceleration, Find (a) the constant acceleration, (b) the final velocity, (c) the time required to cover half of the total distance, (d) the distance covered in one-half of the total time, (e) the velocity in one-half of the total time, (f) the velocity in one-half of the total distance. |
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| 36. |
Establish the relation between the two molar specific heats |
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Answer» I give RELATION with RESPECT to R HOPE You Find Your SolutionThank You AOA |
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| 37. |
A metallic piece displases water of volume 15ml .the volume of the piece is?? |
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Answer» 15ccExplanation:VOLUME of OBJECT = volume of displaced waterhence...the volume of PIECE = 15ml = 15cc |
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| 38. |
What is the limitations of newton law of motion |
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Answer» tion:Yes, it is true. In the presence of a STRONG gravitational field the curvature of spacetime is LARGE (this is the DEFINITION of a 'strong gravitational field', in GR). If curvature is large then the distance and time over which you can treat spacetime as approximately flat becomes very small. That means that the distance and time over which it makes sense to talk about an inertial frame becomes very small, which in turn means that Newton's LAWS are approximately true only on very small scales, with the SCALE getting smaller as the field strength or equivalently curvature rises. |
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| 39. |
One 110-kg football lineman is running to the right |
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Answer» -KG FOOTBALL LINEMAN is RUNNING to the right at 2.75 m/s while another 125-kg lineman is running directly TOWARD him at 2.60 m/s. Hope it helps...... |
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| 40. |
A particle is thrown over a triangle from one end of a horizontal base that ggrazing the vertex falls on the other end of the base. If alpha and beta be the base angles And teta the angle of projection., prove that tan teta -tan alpha+tan beta |
| Answer» 6 में चीन के साथ मिलकर काम करना शुरू कर दिया था कि वह इस 3 में हुई थी और वह भी | |
| 41. |
What is the conclusion of relative density experiment |
| Answer» CONCLUSION of density Lab The objective of the density lab was to calculate the density of water, a rubber stopper and an UNKNOWN LIQUID (ethanol). We also had to determine the percent error of our findings. To do so, we had to collect some data. We used the balances to determine the mass of each object. We also had to measure the volume of each using graduated cylinders. To determine the volume of the rubber stopper, we had to use water displacement. We measured the volume of water in a graduated cylinder, placed the stopper in the cylinder, and measured the new volume. The difference in the two volumes was the volume of the rubber stopper. I was surprised to see that the density of water did calculate out to be exactly 1 g/mL. My measured mass was 46.50 grams and my measured volume was 46.5 mL, which divided out to be 1.00 g/mL. I was also surprised to see that there actually was a difference in the densities of the two liquids. I met the objectives of the lab because I was able to determine the density of water, a rubber stopper and ethanol. I calculated the density of each by taking the mass and dividing it by the volume. Since the theoretical density of water is 1.00 g/mL, both the measured mass and measured volume were the same number, with different labels. As previously MENTIONED, my calculated density of water was 1.00 g/mL, with a 0% error. Since the theoretical density of ethanol is less than 1 g/mL, it made sense that the measured mass was smaller than the measured volume. My calculated density of ethanol was 0.809 g/mL, with a 2.5% error. The theoretical density of the rubber stopper was greater than 1.00 g/mL, so the measured mass was bigger than the measured volume. My calculated density for the rubber stopper was 1.29 g/mL, with a 7.5% error. My low percent errors indicate that I did well with my measurements and calculations. HOPE IT HELPSHAVE A GREAT DAY!!! | |
| 42. |
A piece of iron has dimensions 3cm x 1.5cm x 6cm. If its mass is 205.2g, its relative density is |
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Answer» Length (L) = 3 cmBreadth (B) = 1.5 cmHeight (H) = 6 cmMass (m) = 205.2 g___________________________To FIND :Relative Density ___________________________Solution :We have formula for Density :________________And for relative density is : |
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| 43. |
What acts as positive and negative poles in a cell |
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Answer» In a direct current (DC) circuit, current FLOWS in ONE DIRECTION only, and one poleis always negative and the other pole is always positive. In an alternating current (AC) circuit the two POLES alternate between negative and positive and the direction of the current (electron flow) reverses periodically.thnks for asking ☺☺ |
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| 44. |
The ratio of kinetic energy of a body orbiting near the earth's surface and the kinetic energyof the same body escaping the earth'sgravitational field is |
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Answer» In my opinion K.E of body orbiting EARTH will be While when body is escape out ,its VELOCITY as well as kinetic energy is ZERO. |
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| 45. |
Plz give me notes of chapter 10 ncert class 10 |
| Answer» HEY MATE I which subject do you WANT PLEASE mention it..after I will give you it. | |
| 46. |
8. If 2 balls are projected at angles 45° and 60° and the maximum heights reached are same, what is the ratio of their initial velocities? |
| Answer» PLEASE SEE the ATTACHMENT for your ANSWER. | |
| 47. |
. The nucleus of an iron atomhas cradius about 4X10 15m andcontain 26 protons. What repulsiveelectrostatic force acts b/w two.protons in such a nucleus thatthey are separated by a distance of 1 radius. |
| Answer» SORRY I don't KNOW this BEACUSE I am READ in 8TH | |
| 48. |
(c) mM (d) 1/R3/26A man starts walking from a point on the surface oearth (assumed smooth) and reaches diagonallopposite point. What is the work done by him?(a) Zero(b) Positive(C) Negative(d) Nothing can be said |
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Answer» positive Explanation:the PERSON had DISPLACEMENT in the direction of force so the WORK DONE is positive |
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| 50. |
Next maths ka paper!!!!!! happy cuz its the last paper but very scared cuz its the toughest one |
| Answer» TOMMOROW there is my paper of maths1.But it is not the LAST one there are MANY pappers left.I am in std 10 and the EXAM will FINISH on 23rd marchPlease can you mark me Brainliest just need 2 more pleaseee❤️❤️❤️ | |