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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. |
Why does time seem to run in One Direction ??? |
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Answer» it is a NATURAL FUNCTION. TIME doesn't came back. so.it runs in ONE direction . |
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| 2. |
How can you stay safe when you are online? * |
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Answer» Keep Personal Information PROFESSIONAL and Limited. ...Keep Your PRIVACY Settings On. ...Practice Safe Browsing. ...Make Sure Your Internet Connection is SECURE. ...Be CAREFUL What You Download. Make Online Purchases From Secure SITES. ...Be Careful What You Post.HOPE THIS ANSWER HELPS YOU PLS MARK ME AS A BRAINLIESTS.... |
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| 3. |
State and prove Ampere's law and apply it to calculate "B" due to a longsolenoid. |
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Answer» tion:HINT: Ampere's Circuital Law states that the CLOSED LINE integral of magnetic field around a current carrying conductor is equal to absolute PERMEABILITY times the total current threading the conductor. A toroid works as an inductor which boosts the FREQUENCY to appropriate levels. |
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| 5. |
An object produces a sound wave with a wavelength of 75 cm. If the speed of sound is 350 m/s.What is the frequency of the sound? |
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Answer» An OBJECT produces a SOUND wave with a wavelength of 75 cm. If the speed of sound is 350 m/s.What is the frequency of the sound?Explanation:200 m/si think hope this HELPS |
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| 6. |
Nej ardchalk plz explain in hindi |
| Answer» EXPLANATION:अर्धचालक संस्कृत [संज्ञा पुल्लिंग] (धातु या पदार्थ) जिनमें विशेष परिस्थितियों में ही विद्युत प्रवाह होता है ; जो पूरी तरह सुचालक न हो ; (सेमीकंडक्टर) | |
| 7. |
a particle moves in a Circle of radius 20m in 10s.what is the distance, displacement, average speed, average velocity? |
| Answer» TION:CIRCUMFERENCE distance =125.6 TIME = 10 SPEED = 125.6/10 12.56 m/s | |
| 8. |
Way Error whilemeasuringvelocity of a bodytobe 20% while error in marswas found toCalculateKineticenergybe |
| Answer» MEGNETIC POWER of NATURE in KINETIC ENERGY | |
| 9. |
What is reverberation? how it can be reduced? |
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| 10. |
A car move at an average speed 300kmh1 what is the distance covered in 10mints |
| Answer» EXPLANATION:SPEED 300km/hrTime 10/60 hrsDistance = speed × time 300 × 10/60 = 50 KM | |
| 11. |
What ar the properties of Acrylic |
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Answer» Acrylic is a transparent plastic material with outstanding strength, stiffness, and OPTICAL clarity. Acrylic sheet is easy to fabricate, bonds well with ADHESIVES and solvents, and is easy to thermoform. It has SUPERIOR weathering properties COMPARED to many other transparent plastics. |
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| 12. |
Resolve a weight of 10 N in a direction parallel to a slope inclined at 45° to the horizontal. |
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Answer» ᴛᴇ ! ⭐ᴀɴsᴡᴇʀ⭐Let the force 10N makes an ANGLE θ with the INCLINED lineparallel component = 10×sinθ N ; PERPENDICULAR component = 10×cosθ N |
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| 13. |
Example 11.4 What is the work to to increase the velocity of a car from30 km h-1 to 60 km h-1 if the mass ofthe car is 1500 kg? |
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Answer» provided with initial velocity (u) as 30 km/hr and final velocity (V) as 60 km/hr and we are also given the mass of car (m) = 1500 KG. And we are ASKED to find the work done by the car. To solve this question first we have to convert the initial velocity and final velocity from km/hr to m/s. and after converting the units to m/s we will find the work done by the car by using given below FORMULA :Work done = Change in Kinetic energyNow, we have to simply plug in the known values in the above given formula and we GET our final answer. So, Let's do it : |
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| 14. |
Whatarethe properties of Nylonand |
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Answer» here is Ur ANSWER if POSSIBLE PLEASE mark me as brainlist please thank you |
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| 15. |
Whatarethe properties of Nylonsnl |
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Answer» tion:Pleats and CREASES can be heat-set at higher temperatures.More COMPACT molecular structure.Better weathering PROPERTIES; better sunlight resistance.Softer "Hand"HIGH melting POINT (256 °C, 492.8 °F)Superior colorfastness.Excellent abrasion resistance |
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| 16. |
An empty measuring cylinder has a mass of 84 g. A liquid is poured into the cylinder to a level of 19 cm3 . The mass of the cylinder and liquid is then 99 g. A stone is submerged in the liquid rises to 55 cm3 and the total mass of cylinder, liquid and stone becomes 154 g. (a) For the liquid: (i) calculate the mass in kg |
| Answer» REFER to the ATTACHMENT | |
| 17. |
At a certain temperature, hydrogen molecules have r.m.s. velocity of 3 km/s. what is the r.m.s velocity of the oxygen molecules at the same temperature?(A) 0.25 Km/s(B) 0.5 Km/s(C) 0.75 km/s(D) 6 Km/s |
| Answer» CEXPLANATION:R. m. s=√3RT/√Mr.m.s of HYDROGEN is given=3km/s=3000m/sr. m.s of OXYGEN =?√3RT/√2=3√RT=3(√2/√3)now for oxygen, r. m. s=√3RT/√32 =√3/√32*3(√2/√3) =3(√2)/√32 =3/4 =0.75km/s | |
| 18. |
What happen if the ordinary unpolarised light is passed through a Uniaxial crystal (A) Light is split into two ravs(B) Light remain unaffected(C) Light is split into more than two rays(D) None of themif they travel along the optic Axis? |
| Answer» K ME AS BRAINLIST PLZ | |
| 19. |
What is monochromatic light? |
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Answer» Light of a single WAVELENGTH is KNOWN as monochromatic light.Explanation:A monochromic image is composed of one color. The term monochrome comes from the ANCIENT Greek: 'having one color'. A monochromatic object or image reflects colors in SHADES of limited colors or hues. Images using only shades of grey are called grayscale or black-and-white |
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| 20. |
5. Which one is the example of uniaxial crystal? (A) Calcite(B) Tourmaline(C) Quartz(D) all of them |
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Answer» Option (D) that is All of them is the ANSWER.Hope this HELPS you ;)If YES, then please mark this as the brainliest answer! |
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| 21. |
4. According to the law of Malus, the intensity of polarized light emerging through the analyzer varies as - (A) IOCos20(B) IOSin28(C) IOCose(D) 10/2 Cos20 |
| Answer» TION:(D) is RIGHT ANSWER ------- | |
| 22. |
State the thermometric substance and physical properties of MECURY IN GLASS |
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Answer» hey mate Explanation:A mercury-in-glass thermometer has a range of -390 C to 3600 C while an alcohol-in-glass thermometer has a range of -1120°C to 780 °C. Liquids ALSO EXPAND on heating and is appropriate as thermometric materials. Common thermometers are generally made using some suitable liquid as thermometric material.hope it help u |
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| 23. |
A pupil holding a rope fixed at one end moves her hands up and down at a rate of 4 vibrations per second.she creates a wave with a distance of 1m between successive crests.calculate the speed of the wave along the rope |
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Answer» tion:Most SILVER is produced as a BYPRODUCT of copper, GOLD, lead, and zinc refining. Silver has LONG been valued as a PRECIOUS metal. |
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| 24. |
2. In optics, when the vibrations of light are limited to a single two dimensional plane, it is said that light has been what?(A) Polarised(B) Plane polarised(C) Partially polarised(D) UnpolarisedPuntare low in terms of refractive index can be Expressed as - |
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Answer» polarisedExplanation:If the electric FIELD vectors are RESTRICTED to a single plane by filtration of the beam with specialized materials, then the light is referred to as plane or LINEARLY polarized with respect to the direction of propagation, and all waves vibrating in a single plane are termed plane PARALLEL or plane-polarized. |
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| 25. |
A force of 3N acts through moment arm of √2N produced torque 3N_m .then the angle between arm is |
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Answer» 45°Explanation:as we KNOW that; torque=rFsinΦthus; sinΦ=torque/rFsinΦ=1/√2and FINALLY; Φ=sin-¹1/√2Φ=45° |
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| 26. |
52. In normal Zeeman effect a pectral line is splitted into (A) 2 componen ts (1 0 & 11)(B) 3 componen ts (2 0 & la)(C) 3 componen ts (1 9 & 21)(D) 4 componen ts (2 0 & 21) |
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Answer» tion:3 componen ts (1 9 & 21). The RESISTANCE of a wire is inversely proportional to its area and directly proportional to its length. When the length is TRIPLED then resistance will also BECOME three times. If The wire is stretched 3 times the original length, the cross-section of the wire is cut to 1/3rd it's the original cross-section |
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| 27. |
How can this problem be solved? |
| Answer» SOLVE this question -->First, you NEED to know the FORMULA to FIND qFor that solve the whole first then you will get | |
| 28. |
:) Study the diagram below and (i) Identify the electrical components labelled A, B and C.Gi) State whether the circuit given below is open or closed. |
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Answer» tion:Study the diagram below and(i) IDENTIFY the ELECTRICAL COMPONENTS labelled A, B and C.Gi) State whether the circuit GIVEN below is OPEN or closed. |
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| 29. |
5 modules (12V/4A) are connected in | | the Result is: |
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Answer» tion:To CONNECT a group of batteries in series you connect the NEGATIVE terminal of one battery to the positive terminal of another and so on until all batteries are connected, you WOULD then connect a link/cable to the negative terminal of the first battery in your string of batteries to your APPLICATION, then another .. |
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| 30. |
What is telephone earpiece |
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Answer» The Telephone Earpiece ALSO known as the receiver SERVES as an electric mouth. LIKE a human voice, it has vocal CORDS. The vocal cords of the receiver are a diaphragm. Two magnets located at the edge of the diaphragm cause it to vibrate. |
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| 31. |
3. Whatis a transformer? Give the construction and theory of a transformer. |
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Answer» Basically a transformer consists of two inductive coils; primary winding and secondary winding. The coils are ELECTRICALLY separated but magnetically linked to each other. When, primary winding is connected to a source of ALTERNATING voltage, alternating magnetic FLUX is produced AROUND the winding. |
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| 32. |
What is best approx of the wight of object 80 grams. |
| Answer» TION:SORRY but don't KNOW the ANSWER ❤❤ | |
| 33. |
A bullet having mass |
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Answer» A bullet having a MASS of 10g and moving with a speed of 1. 5 m/s, penetrates a thick wooden PLANK of mass 90g.Explanation: |
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| 34. |
A wire of certain length has a resistance of 24 ohm. If is recast by reducing its length to half. Calculate the new resistance. |
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Answer» 12 ohmsExplanation:we KNOW that; R=¢L/A where ¢ is TAKEN as resistivityas R is directly related to L thus when the L is reduced to half the R will also be reduced to half.Therefore; R=1/2(24)finally; R=12 ohms |
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| 35. |
Difference between distance and displacement |
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Answer» DISTANCE IS SPEED TIMES TIME WHERE ASDISPLACEMENT IS SHORTEST DISTANCE FROM THE INITIAL POSITION TO THE FINAL POSITION. |
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| 36. |
A pictorial representation of relation between quantities which vary is known as what |
| Answer» GRAPH is the PICTORIAL REPRESENTATION. | |
| 37. |
Conisder a light bulb of 60w used for 4 hours per day ,how much would be the annual energy consumption of 4 such bulbs in kWh/year if they are used for 350 days in a year |
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Answer» 336 KwhExplanation:e= p×te =60×4 =240 wh PER day electricity consumption for a YEAR = 350 × 240=84000 whenergy consumption for 4 bulbs = 4×84000=336000 wh or 336 KWH |
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| 38. |
What do uh mean by refractive index ? ...(╥﹏╥) |
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Answer» Refractive Index (Index of REFRACTION) is a value CALCULATED from the ratio of the speed of light in a vacuum to that in a second medium of GREATER DENSITY. The refractive index variable is most commonly symbolized by the letter N or n' in descriptive text and mathematical equations |
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| 39. |
WHAT ARE COMETS AND CONSTELLATION❓❓?? |
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Answer» Comets are cosmic snowballs of frozen GASES, rock and dust that ORBIT the Sun. ... When frozen, they are the size of a small town. When a comet's orbit brings it close to the Sun, it HEATS up and SPEWS dust and gases into a GIANT glowing head larger than most planets.Explanation:Hope it will help you and please folw me!! |
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| 40. |
Vi. Bernoulli's equation is dependent on: a) first law of thermodynamicsb) third law of thermodynamicse) law of conservation of momentumd) none of the above |
| Answer» CONSERVATION of MOMENTUM. | |
| 41. |
A battery has an e.m.f. of 40V and negligiblde resistance. What does this tell you about wpork done by the battery in driving coulumb of charge and closed circuit ? th |
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| 42. |
State and define 6 applications of atmospheric in at home |
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Answer» Welcome to Gboard CLIPBOARD, any text you copy will be SAVED here.Tap on a clip to paste it in the text box.Use the edit icon to pin, add or delete clips.Touch and HOLD a clip to pin it. Unpinned clips will be DELETED after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour. |
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| 43. |
EXPLAIN SOLAR SYSTEM SCOPE??LEGENDS CAN INBO.X ME☣☣ |
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Answer» tion:SOLAR SYSTEM Scope is a model of Solar System, Night sky and OUTER SPACE in real time, with accurate POSITIONS of objects and lots of interesting facts. |
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| 44. |
Uses of bleaching powder |
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Answer» Bleaching PowderIt is used for bleaching dirty clothes in the laundry, as a bleaching agent for cotton and linen in the TEXTILE industry. It is a strong oxidizing agent, HENCE used as an oxidizer in MANY industries. It is used as a disinfectant which is used for DISINFECTING water to make potable water.Khadijah21 |
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| 45. |
6. What happen if the ordinary unpolarised light is passed through a Uniaxial crystal |
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Answer» What happens is that when unpolarized light enters the CRYSTAL from below, it is broken into two polarized RAYS that vibrate perpendicular to each other within the crystal. One ray, labeled o in the FIGURE shown here, follows Snell's Law, and is called the ORDINARY ray, or o-ray.Explanation:Please mark as brainliest answer. |
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| 47. |
Value of l when n=7 is???pls say. |
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Answer» The POSSIBLE values of l:Since l can be zero or a positive INTEGER less than (n−1), It can have a value of 0, 1, 2, 3, 4, 5 or 6.⠀⠀~hope it helps๑Ꮇαnσgnα |
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| 48. |
An object moving with a speed of 35m/s and has a kinetic energy of 1500 J, what is the mass of object? |
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| 49. |
State and define 6 applications of atmospheric pressure in our daily life |
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Answer» Syringes are used to take blood for blood TESTS. The pressure of the liquid (blood) forces the liquid to MOVE into the SYRINGE when its plunger is WITHDRAWN. When air is sucked out of a drinking STRAW, the air pressure inside if decreases and the atmospheric pressure outside forces the liquid to go inside the straw. |
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| 50. |
Calculate the Energy needed to push a rock weighing of 100kg for 2 metre? |
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Answer» ans is zeroExplanation:for pulling u require FORCE ..in this CASE gravitational force i.e. weight is acting DOWNWARD and u have to push a body in translation motion so angle between force and displacement is 90 ° As work done is equal to dot product of force and displacement so COS theta is cos 90° which is equal to zeroIt MEANS work done is zerowork done= change in K.Eif initially body is rest then energy stored in body is zero joule |
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