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. |
Give one practical application of reflection of sound waves |
| Answer» SONAR the PRACTICAL APPLICATION of REFLECTION of SOUND | |
| 2. |
An object is placed between two mirrors which are at angle of 360 degree . how many images will form on the mirror ? |
| Answer» TION:infinitehope it helpspls MARK it BRAINLIEST PLZZ | |
| 3. |
0.35 decimal number change into binary equivalent explanation step by step plz. |
| Answer» E don't KNOW | |
| 4. |
The centripetal force acting on a body undergoing circular motion is |
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| 5. |
Is Rain man & river boat problems from kinametics are important for NEET?? |
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Answer» okExplanation:I THINK no it is not THANK you HOPE it HELPS you |
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| 6. |
Give two example were displacement of a body is zero |
| Answer» BODY starts MOVING in a circular path and finally comes back to its starting position.Here displacement is zeroExplanation:displacement is the shortest path from initial position to final position .In this CASE of circular path the initial position is equal to final position and hence no SHORT path can be drawn between them so displacement is zero | |
| 7. |
draw the diagram when two resistors 4 ohm and 12 ohm are connected in parallel and other 7 ohm resistor is connected in series to a battery of 12v |
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| 8. |
A Porsche 911 accelerates from rest to 60 mph (27.8 m/s) due North in 5.8 s. The mass of the car is 1400 kg. What is the magnitude and direction of the average net force that acts on the Porsche? |
| Answer» YA it's very EASY QUESTION | |
| 9. |
The relative density of brass is 8.5, what does this statement mean? |
| Answer» FIRSTLY DENSITY of BRASS is 8.73Explanation:it MEANS the compactess of brass | |
| 10. |
Is It Right?? tell me and explain how?? |
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Answer» Right tho haiExplanation:Method bhi SAHI Hai RECIPROCAL ka PROBLEM Hai bsBaki SAB tikh Hai THANK you |
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| 11. |
10. A pulse is allowed to get reflected from a wall. Then (a) r = ci(6) compression becomes rarefaction(c) only (a)(d) both (a) and (b) |
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Answer» D.Explanation |
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| 12. |
Jhvghjjjjvvvjjjjhvv |
| Answer» BEXPLANATION: | |
| 13. |
45. The sun radiates energy at the rate of 3.77 x 1020 J/s.The loss of mass it suffers per second is :-(1) 41.9 x 1018 g.(2) 41.9 x 108 kg(3) 1.29 x 1016 kg.(4) 1.29 x 1010 kg. |
| Answer» VAUXHALL malhhari I have to GO to the GYM and then I will be there for you | |
| 14. |
Newton thiird law of motion |
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Answer» is a PUSH or a pull that acts upon an object as a results of its interaction with another object. ... These two FORCES are called action and reaction forces and are the subject of Newton's third law of motion. FORMALLY stated, Newton's third law is: For every action, there is an equal and opposite reaction.SELECT TO BRAINLIST ANSWER... |
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| 15. |
9. Kinetic energy of oxygen molecule at 0 °C is 18.8 x 102). Calculate Avogadro's number when R=8.31 Imol'K!KEM Pa kinetic energy of oxygen molecule at zero degree celsius is 18.8 into 1.0 1 1 kinetic energy of oxygen molecule at zero degree celsius is 18.8 into 10 to calculate Avogadro's number |
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Answer» we know that AVAGADRO NUMBER is 6.034 ×10^26Divide no.of moles and FIND the ANSWER |
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| 16. |
Briefly explain why an ambulance has been inversely written in front of the ambulance car? |
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| 17. |
12 Fined (1) time of flight (ii) horizontal range (iii) maximum height, when projectile is projected with velocity v making an angle 0 with the vertical direction. |
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| 18. |
Write the list of material required to perform an exiperiment for magnetic field due to straight wire carrying current? |
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Answer» the MATERIALS REQUIRED are ;a CIRCUIT with ammeter,a COPPER WIRE,a cardboard with a hole in center |
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| 19. |
How you took the 2nd equation |
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Answer» ✌MARK AS BRAINLIST ✌❇️❇️❇️❇️❇️❇️❇️❇️❇️❇️❇️❇️plz COMPLET your QUESTION ❇️ |
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| 20. |
If electical energy cost K0.90 per unit , what is cost of running an Air _condition With an avarrage power of 1000W for 8hours. |
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Answer» Rs. 7.2Explanation:Unit cost = Rs. 0.90Power of Air CONDITION = 1000 w = 1 KwTime = 8 hoursEnergy = Power x TIME = 1 Kw x 8 h = 8 Kwhtotal cost of RUNNING air condition = 8 x 0.90 = Rs. 7.2 |
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| 21. |
A 6cm tall object is placed perpendicular to the principal axis of a concave mirror of focal length 12cm. The distance of the object from the pole of the mirror is 16 cm. Use mirror formula to find the position,nature,and size of the image formed |
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Answer» mage-height is NEGATIVE, So the NATURE is REAL and INVERTED. |
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| 22. |
Suggest some properties of materials that would make good springs |
| Answer» IRON,STAINLESS STEEL, COPPER,BRASS | |
| 23. |
What is the valence electrons |
| Answer» N PRESENT in the last SHELL (VALENCE shell) are called valence ELECTRONS. | |
| 24. |
V= 15 V, R= 3,000ohms I = ? formula is I= V/R (The Current) Answer plzzz with data and solution request don't mind I know it silly question and answer is this 0.005 I just wanna to confirm help |
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Answer» by USING OHMS LAW,V = IRExplanation:V = IRI = V/RI = 15/3000I = 1/2000I = 0.005 A |
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| 25. |
A fixed mass of a gas occupies 1000 cube at 0 degree Celsius. If it is heated at constant pressure to 100 degree Celsius calculate its new volume |
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Answer» s you have to usePV=nRT where EXCEPT T and P all are CONSTANT for this question.thereforeP/T=constantequating VALUES you GET P=100000 m^3 |
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| 26. |
explain how a current carrying cal rotates when it is kept a uniform magnetic field of electrical energy converted into chemical energy |
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Answer» Fghuujnnbhhhjnnnnnnnnnxxbgccc bnmMz |
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| 27. |
Draw ray diagrams when an object is placed 8cm from the pole of a convex mirror |
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Answer» understand your feelings just LEAVE it and STUDY for MATHS exam.. |
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| 29. |
Does the magnifying power of a microscope depend on the colour of the light used? Justify your answer. |
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Answer» tion:✔ A microscope consists of two lenses and we know focal length of a lens depends on the refractive index of the lens which itself depends on the wavelength or COLOUR of the light used.✔ HENCE, if colour of light changes focal length of the lens also changes which would simultaneously change the IMAGE distance.✔ This change in image distance will change the MAGNIFYING power (as magnifying power is the ratio of image distance to object distance).✔ Therefore, we can say the magnifying power of a microscope depends on the colour of the light used. |
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| 30. |
the list of material required to perform an experiment for magnetic field due to straight wire carrying current |
| Answer» OD CARDIRON FILINGS STRAIGHT ROD CONDUCTOR CELL,KEYmaterials required | |
| 31. |
14. re with a resistance of 27 12 is dividedA uniform wire with a resistance of 2into three equal pieces and then they are joinrallel. Find the equivalent resistance of the parallelcombination with diagram |
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Answer» 14.re with a resistance of 27 12 is dividedA uniform wire with a resistance of 2into three EQUAL PIECES and then they are joinrallel. Find the equivalent resistance of the parallelcombination with DIAGRAM susvhs |
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| 32. |
The sound waves are reflected from an obstacle into the same medium from which they were incidents. Which Of the following change |
| Answer» COMPLETE your question.Which of the FOLLOWING CHANGE........ | |
| 33. |
Car is moving with velocity of va=40m/s and car b is moving with velocity of vb=30m/s find the relative velocity of vab |
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Answer» ou've not given the direction of their motion, I'll assume they're MOVING in the same direction.So, Vab = Va - Vb = 40 - 30 m/s Vab = 10 m/s |
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| 34. |
Is there any limit to change of focal length of the eye-lense... ( NOTICE :- please don't write wrong or silly answers ) |
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Answer» The ability to focus nearby or faraway objects is called power of ACCOMODATION. There is a LIMIT of the focal length which is from 25cm to Infinity. You can't observe objects CLOSER than 25cm, which is the only limitation. However you can see as FAR as possible because the eye lens can ADJUST to the focal length. |
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| 35. |
Give list of manufactures of clamp on meter |
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Answer» A clamp meter is an ELECTRICAL tester that combines a basic digital multimeter with a current sensor. Clamps measure current. PROBES measure voltageClamp meters are generally safer than multimeters, as you don't have to connect them to the electrical circuit. However, multimeters can generally make more precise measurements, as they must come in direct CONTACT with the circuit.Explanation:SELECT TO BRAINLIST ANSWER... |
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| 36. |
Uniform wire with a resistance of 27 S2 is divided into three equal pieces and then they are joinedparallel. Find the equivalent resistance of the parallel combination |
| Answer» TER DIVIDING them into equal parts,RESISTANCE of each PART =9Ωwhen CONNECTED in parallel,1/9+1/9+1/9=1/R3(1/9)=1/R1/3=1/RR=3Ω | |
| 37. |
As a ship approaches a cliff,it's siren sounded and the echo is heard in the ship after 12secs.2mins later,the siren was sounded again and the echo was heard 8secs later.if the speed of sound in air is 340m/s calculate the velocity at which the ship was approaching the cliff. |
| Answer» GIVE the QUESTION to me in HINDI | |
| 38. |
Write your question here (Keep it simple and clear to get the best answer) The weight of a stone is 20N when completely immersed in water and 15N when completely immersed in liquid of relative density 2,what is weight of stone in air |
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Answer» Balance of the answer is unavailable due to some technical ERRORS PLEASE COME back LATER and COOPERATE with us |
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| 39. |
Explain the metallic and non metallic properties of groups |
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Answer» Metallic properties :-Metals are generally solid at temperatureMetals are heavy They are HARD and LONG brittle They are GOOD conductors of heat and electricityNonmetallic properties are opposite of metallic propertiesExplanation:plz MAKE me as brainliest if u like my ANSWER |
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| 40. |
WY) what fraction of sodium atom is inthe first excited state in a sodom.vapour lamp at temperature of 250C Wavelength of sodium light is 589.5nm. |
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Answer» yesExplanation:hahydyshhwhsjuzjjskushshhsgsghshgsgshsggsggsggxthegsghshsggshdhhshvvsbjhsgbhhsugsvbwjwgaghaksyxudbdhuzhgshuyagheidysisyyhvejshshhsuuevghihai BRO asdfgfhwajwjqajjsaqQqajgsgshai |
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| 41. |
What are mateorities ? in which bodies are meteorite craters more commonly found and why? |
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Answer» ❣❣✔Meteorite craters are more common on the Moon and Mars and on other PLANETS and natural satellites than on Earth, because most METEORITES either burn up in Earth's atmosphere before reaching its surface or erosion soon OBSCURES the impact site.✍ PLEASE mark it as brainlist answer ✍ |
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| 42. |
Two blocks are connected by a massless pulley as shown in the figure the mass of block a is 10 kg and the coefficient of kinetic friction is 0.2 block a slides down in the incline at constant speed the mass of the block b in kg is |
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Answer» Balance of the ANSWER is unavailable due to some technical errors please come back later and cooperate with US.#BrainlyOfficial |
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| 43. |
A pressure of given mass of gas change from 200nm²to 100nm² while the temperature drops 127c -73c calculate the ration of final volume |
| Answer» LIKE the ANSWER and my EXPLANATION PLZZ like my answer | |
| 44. |
Please say this answers |
| Answer» 10 ohmExplanation:1/ TOTAL RESISTANCE of PARALLEL resistors=1/4+1/12. =1/3 Total Resistance in parallel=3 ohmTotal Resistance of Circuit=Total Resistance in parallel+Total Resistance in series=3+7=10 OHM | |
| 45. |
3. Draw the curca n hanstors 4 andconnected in parallel and other 7 Sa tesistor is connected w serverento a battery of 12 v. |
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Answer» PLEASE WRITE THE QUESTION CORRECTLY....IT IS VERY DIFFICULT TO UNDERSTAND......Please....DONT report.... |
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| 46. |
1. Calculate the equivalent resistance between the points A and B in Fig. 8.44 if each resistance is 2.0 12.2.0 022.0ww-2.02A-w2-022Fig. 8.44 |
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Answer» 5 ohmExplanation:RESISTANCE in SERIES 2+2 = 4 resistance in parallel 1/2+1/2=1resistance in series1+4= 5 OHM plzz MARK as brainliest |
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| 47. |
Why electric field outside a hollow thin cylindrical pipe is zero |
| Answer» BRO inside zero, OUTSIDE to HOTA HAI | |
| 48. |
A crane pulls a truck having a mass of 3000kg to a veetical height of 7 metres. Calculate the work done by crane.(g=10m/s^2) |
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Answer» pulls a truck having a mass of 3000kg to a veetical height of 7 METRES. CALCULATE the work done by crane.(g=10m/s²) Mass (m) = 3000 KgVertical Height (s) = 7 mg = 10m/s²Work done (W) ✪➝ s = Displacement = 7M ➝ F = Force ➝ Work done by crane is . |
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| 49. |
Show that the angle of friction is equal to angle of repose |
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Answer» Here is your ANSWEREXPLANATION: |
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| 50. |
10. Calculate the equivalent resistance between the points A and B in Fig. 8.44 if each resistance is 2-0 $2.2.02.0 2200A - www2.0 22Fig. 8.44 |
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