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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. |
Draw circuit diagram of electron gun |
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Answer» Answer: Hii, Explanation: A DIRECT current, electrostatic thermionic electron gun is FORMED from several parts: a hot CATHODE, which is heated to create a STREAM of electrons via thermionic EMISSION, electrodes generating an electric field to focus the electron beam (such as a Wehnelt cylinder), and one or more anode electrodes which accelerate # XxLovingBoyxX ❤️ |
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| 2. |
State the number of significant figures in 0.07800 class 11 |
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Answer» Answer: 4 Significant FIGURE. Explanation: as 0.07800 is the number. So if we remove the zeroes after decimal it won't CHANGE the value of it. But Zeroes before 7 and decimal has great IMPORTANCE. So the required significant figure is 4 as COUNTED by 0,0,7,8. |
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| 3. |
Considerasystemoftwomassesm1andm2.Letu1betheinitialvelocityofmassm1andletm2beatrest.Themassesundergoanelasticcollisioninonedimension.Derivetheexpressionforthevelocitiesofthetwomassesafterthecollision |
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| 5. |
What do we get on the electrolysis of water H²o |
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Answer» Answer: h² +O ² Explanation: when we do ELECTROLYSIS of WATER we GET HYDROGEN ions and oxygen ions |
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| 6. |
TheEscapevelocityfromtheEarthforabodyofmass100gis11.2km/s.Whatwillbeitsvaluefora bodyof20g?Justify. |
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Answer» Bro i don't KNOW this QUESTION but I THINK it is hard question and how it can be done in |
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| 7. |
A body falls freely from the top of a building and reaches the ground 2s later. How high is the building? (Take g= 9.8 ms) |
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Answer» f.o.l.l.o.w me for more answer |
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| 8. |
. Draw a circuit diagram of an electric circuit containing a bulb, a switch & a cell when the switch is in: a. on position b. off position |
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Answer»
ᴀ. ᴏɴ ᴘᴏsɪᴛɪᴏɴ ᴡʜᴇɴ sᴡɪᴛᴄʜ ɪs ᴏғғ ᴘᴏsɪᴛɪᴏɴ ᴛʜᴇ ᴄᴏɴɴᴇᴄᴛɪᴏɴ ᴏғ ɪs ʙʀᴇᴀᴋ |
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| 9. |
ExplaintheprincipleandworkingofaVenturi-meterwithaneatdiagram.Derivethespeedofflowoffluid. |
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| 10. |
Thetemperatureofanidealgasisdoubledatconstantvolume.Howdoesthermsspeedofmoleculesofgaschange? |
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Answer» Answer: doubled at constant because all people working like CARBON dioxide gas mithen, it's very dangerous and popular GASES but it's work very powering all people are used her but when when it's very DANGER for people BIRDS animals like dog, cat ETC |
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| 11. |
A rotating drum is braked by a flat belt attached to the lever ABC hinged at B. Determine the braking moment exerted by a vertical weight of 150 N while the coefficient of friction between the belt and the drum is 0.43. |
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| 12. |
Let (C) represent the root mean square speed of molecule in a gas and let (V) the speed of sound waves in that gas. Show that the ratio (C/V)is constant for a given gas. |
Answer» Given:(C) represent the root mean square speed of molecule in a gas and let (V) the speed of SOUND waves in that gas. To FIND:C/V ratio is a constant for that gas. Calculation:Again, velocity of sound in gas (as per LaPlace CORRECTION): Now, REQUIRED ratio is : Since [Hence Proved] |
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| 13. |
Define the term gravitational potential for a gravitational field |
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Answer» Answer: The gravitational potential at a point in a gravitational FIELD is the work done per unit mass that WOULD have to be done by some externally applied force to bring a massive object to that point from some DEFINED position of zero potential, usually infinity . |
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| 14. |
4.The Escape velocity from the Earth for a body of mass 100g is 11.21 km/s .What will be its value for a body of 20g ? Justify. |
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Answer» Answer: 11.2 km/s Explanation: Escape VELOCITY is INDEPENDENT of the mass of the PROJECTED body PROVIDED the air resistance is neglected. Hence, the escape velocity of 10kg10kg of the iron ball projected from the earth is same that of escape velocity of 10g10g projected from the earth i.e., 11.2kms−1 f.o.l.l.o.w me for more answer |
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| 15. |
Thetemperatureofanidealgasisdoubledatconstant volume.Howdoes therms speedofmoleculesofgaschange? |
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Answer» I don't KNOW what is this ANSWER and which is your QUESTIONS |
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| 16. |
A body is projected with a velocity of 30m/s making an angel of 30° with the horizontal. find its horizontal component. |
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Answer» Answer: The HORIZONTAL COMPONENT will be 25.9 m/s Explanation: v = 30 m/s ø = 30° Horizontal component is given by: v' = v cos ø → v' = 30 × cos 30° → v' = 30 × √3/2 → v' = 15 × √3 → v' = 15 × 1.73 → v' = 25 .9 |
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| 17. |
371 The value of ceitical Constant Vc is |
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Answer» ckfnfjcodjdofkfkfifj |
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| 18. |
Nowadays,engineers have found a new material, aluminium foam, to make high-speed trains over other metals. what could be the reason behind it? |
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Answer» Answer: Commuters MAY soon be whisked to work in train cars made of aluminum foam, a COMPOSITE material that's stronger, LIGHTER, and has BETTER crash-test CHARACTERISTICS than traditional fiberglass or metal. |
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| 19. |
Define simple pendulum and its effective length of it |
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Answer» Answer: Explanation: Effective length of the PENDULUM: The distance L between the point of suspension and the centre of spherical bob (centre of GRAVITY), L = l + r + e, is also called the effective length where l is the length of the STRING from the TOP of the bob to the hook, e, the length of the hook and r the radius of the bob. |
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| 21. |
An object of mass ‘m ‘is kept on the floor of a lift. What will be the apparent weight of the object when the lift moves with a constant speed‘v’downwards? |
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Answer» MATHEMATICS mathematics EDUCATION |
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| 22. |
Explain the usefulness of chemical in every day life |
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Answer» CHEMISTRY is important in everyday life because: ... Many of the changes you observe in the world around you are caused by chemical reactions. EXAMPLES include leaves CHANGING colors, cooking food and getting yourself clean. Knowing some chemistry can help you make day-to-day DECISIONS that affect your life. |
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| 23. |
Why did the Congress reject the offer of Cripps Mission? |
Answer» TOPIC:-ᴄʀɪᴘᴘs ᴍɪssɪᴏɴ DEFINITION:-ᴛʜᴇ ᴄʀɪᴘᴘs ᴍɪssɪᴏɴ ᴡᴀs sᴇɴᴛ ʙʏ ᴛʜᴇ ʙʀɪᴛɪsʜ ɢᴏᴠᴇʀɴᴍᴇɴᴛ ᴛᴏ ɪɴᴅɪᴀ ɪɴ ᴍᴀʀᴄʜ 1942 ᴛᴏ ᴏʙᴛᴀɪɴ ɪɴᴅɪᴀɴ ᴄᴏᴏᴘᴇʀᴀᴛɪᴏɴ ғᴏʀ ᴛʜᴇ ʙʀɪᴛɪsʜ ᴡᴀʀ ᴇғғᴏʀᴛs ɪɴ ᴛʜᴇ 2ɴᴅ ᴡᴏʀʟᴅ ᴡᴀʀ. THE PURPOSE OF CRIPPS MISSION:-1. ʙʀɪᴛᴀɪɴ sᴜғғᴇʀᴇᴅ ᴍᴀɴʏ ʟᴏssᴇs ɪɴ sᴏᴜᴛʜᴇᴀsᴛ ᴀsɪᴀ ᴀɴᴅ ᴊᴀᴘᴀɴ’s ᴛʜʀᴇᴀᴛ ᴛᴏ ɪɴᴠᴀᴅᴇ ɪɴᴅɪᴀ sᴇᴇᴍᴇᴅ ʀᴇᴀʟ ғᴏʀ ᴛʜᴇᴍ. ʜᴇɴᴄᴇ, ʙʀɪᴛᴀɪɴ ᴡᴀɴᴛᴇᴅ ɪɴᴅɪᴀ’s sᴜᴘᴘᴏʀᴛ. 2. ʙʀɪᴛᴀɪɴ ᴡᴀs ᴘʀᴇssᴜʀɪsᴇᴅ ʙʏ ᴛʜᴇ ᴀʟʟɪᴇs (ᴜsᴀ, ᴜssʀ & ᴄʜɪɴᴀ) ᴛᴏ sᴇᴇᴋ ɪɴᴅɪᴀ’s ᴄᴏᴏᴘᴇʀᴀᴛɪᴏɴ. 3. ɪɴᴅɪᴀɴ ɴᴀᴛɪᴏɴᴀʟɪsᴛs ʜᴀᴅ ᴀɢʀᴇᴇᴅ ᴛᴏ sᴜᴘᴘᴏʀᴛ ᴛʜᴇ ᴀʟʟɪᴇᴅ ᴀs ᴛʜᴇʏ ʜᴏᴘᴇᴅ ғᴏʀ ɪᴍᴍᴇᴅɪᴀᴛᴇ ᴛʀᴀɴsғᴇʀ ᴏғ sᴜʙsᴛᴀɴᴛɪᴀʟ ᴘᴏᴡᴇʀ ᴀɴᴅ ᴄᴏᴍᴘʟᴇᴛᴇ ɪɴᴅᴇᴘᴇɴᴅᴇɴᴄᴇ ᴀғᴛᴇʀ ᴛʜᴇ ᴡᴀʀ. REASON FOR REJECTION:-1. ᴛʜᴇ ɪɴᴄ ᴡᴀs ᴀɢᴀɪɴsᴛ ᴛʜᴇ ᴘʀᴏᴠɪɴᴄᴇs’ ʀɪɢʜᴛ ᴛᴏ sᴇᴘᴀʀᴀᴛᴇʟʏ ғᴏʀᴍ ᴜɴɪᴏɴs ᴀs ᴛʜɪs ᴡᴀs ᴅᴀᴍᴀɢɪɴɢ ᴛᴏ ɴᴀᴛɪᴏɴᴀʟ ᴜɴɪᴛʏ. 2. ᴛʜᴇʏ ᴡᴇʀᴇ ᴀʟsᴏ ᴀɢᴀɪɴsᴛ ᴛʜᴇ ɢᴏᴠᴇʀɴᴏʀ-ɢᴇɴᴇʀᴀʟ’s ᴘᴏᴡᴇʀ ʙᴇɪɴɢ ʀᴇᴛᴀɪɴᴇᴅ ᴀs ᴀɢᴀɪɴsᴛ ʜɪᴍ ʙᴇɪɴɢ ᴏɴʟʏ ᴀ ᴄᴏɴsᴛɪᴛᴜᴛɪᴏɴᴀʟ ʜᴇᴀᴅ. 3. ᴛʜᴇʏ ᴀʟsᴏ ᴘʀᴏᴛᴇsᴛᴇᴅ ᴛʜᴇ ʟᴀᴄᴋ ᴏғ sʜᴀʀᴇ ɪɴ ᴅᴇғᴇɴᴄᴇ. 4. ᴛʜᴇʀᴇ ᴡᴀs ɴᴏ ᴄᴏɴᴄʀᴇᴛᴇ ᴘʟᴀɴ ғᴏʀ ᴛʜᴇ ɪᴍᴍᴇᴅɪᴀᴛᴇ ᴛʀᴀɴsғᴇʀ ᴏғ ᴘᴏᴡᴇʀ. |
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| 24. |
Ifa vector . b vector = a vector × b vector . so what is the angle between a vector and b vector |
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Answer» jwjwiwiwiejebeheueiw8wwih22 bhai point ki jarurat HAI Explanation: kaunsi PRIMO order ondho Irwin bhai point ki jarurat hai |
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| 25. |
If the image cannot be taken on the screen, it must be___ |
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Answer» : (a) An image that cannot be obtained on a screen is called VIRTUAL image. (b) Image FORMED by a convex mirror is always virtual and smaller in size. (c) An image formed by a plane mirror is always of the same size as that of the object. Explanation: HOPE IT HELPS YOU ☺️ |
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| 26. |
.The focal length of a concave mirror is 17cm. If an object is placed at a distance of 34cm from the pole, then its image will be formed at-----------.Required to answer. Single choice.(2 Points)34 cm, and will be erect in nature34cm, and will be inverted in nature17cm, and will be inverted in nature |
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Answer» Answer: |
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| 27. |
The Escape velocity from the Earth for a body of mass 100 g is 11.2 km/s. What will be its value for a body of 20 g? Justify. |
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Answer» ESCAPE velocity is INDEPENDENT of the mass of the projected body provided the AIR resistance is neglected. HENCE, the escape velocity of 10kg10kg of the iron ball projected from the earth is same that of escape velocity of 10g10g projected from the earth i.e., 11.2kms−1 f.o.l.l.o.w me for more answer |
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| 28. |
1.भौतिकी विज्ञान की प्रकृति क्या है ? इसके क्षेत्र तथा विकास की संक्षेप में व्याख्या कीजिएWhat is the nature of physics ? Discuss its scope and development in brief. |
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Answer» Explanation: Physics is the SCIENCE that studies the simplest and most GENERAL REGULARITIES underlying natural phenomena, the properties and structure of matter, and the laws governing the motion of matter. ... By its very nature, physics is an experimental science, its laws being BASED on facts that are established experimentally. |
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| 29. |
(iii) Alankrita draws magnetic field lines around a bar magnet NS.АBShe observes the diagram and made some statements.I. Magnetic field at A is stronger.II. Magnetic field at B is weak.III. Magnetic field at A and B are weak.IV. Magnetic field at A and B are strong.Choose from the following which would be the correct statement/s.(a) only (III)(b) (I) and (II)(c) only (IV)(d) (I) and (III) |
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Answer» only IV because two poles are in EQUAL & there magnetic force are equal |
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| 31. |
Assertion:Themotionofthecentreofmassdescribesthetranslationalpartofthemotion.Reason:Translationalmotionmeansalwaysstraightlinemotion. |
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Answer» TRANSLATION MOTION I THINK so |
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| 32. |
While playing the game of basketball, an experienced player often uses the conceptsof projectile motion. Such a player knows that she/he should properly adjust theangle of projection () of the ball when the ball is released with a certain velocity, u.This adjustment has to be done so that the vertical distance, travelled by the ball,in a time to, equals the vertical separation between the basket and the point ofprojection. Also, in the time to, the ball should travel a horizontal distance equal tothe horizontal separation between the basket and the point of projection.(1)For a given speed of projection, the horizontal distance, covered by the ball, hasits maximum value when the angle of projection equals :(a) 45°(b) 90°(c) 30°(d) 60° |
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| 33. |
Q. If positive terminal of battery connected to p-type and negative is connected to n-type then circuit is said to bea) forward biasb) reverse biasc) p-n junction dioded) forward current |
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| 34. |
Whydoesn’tthepressureof atmospherebreakthewindows |
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Answer» PRESSURE of ATMOSPHERE does not break windows as ATMOSPHERIC Pressure is exerted on both SIDES of a window so no net force is exerted on the window and hence uniform pressure does not break the window.
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| 35. |
WHAT IS THE RELATION BETWEEN TORQUE AND ANGULAR MOMENTUM??.......#THE GREAT SHREYA ❤️ |
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Answer» Answer: the torque is DEFINED as the RATE of change of angular momentum which is the same as the cross product of the LINEAR force and the DISTANCE from the axis. so, the torque is the rate of change of angular momentum |
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| 36. |
Abodyisprojectedwithavelocityof30m/smakinganangleof300withthehorizontal.Finditshorizontalcomponen |
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Answer» Answer: The projected velocity of the body u = 30 m/s. The ANGLE of inclination of the velocity with VERTICAL is 30 degree. Hence, the HORIZONTAL COMPONENT of the velocity = = = 15 m/s The vertical component of the velocity
The maximum height is calculated as -
The total TIME of flight is calculated as -
The horizontal range is calculated as -
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| 37. |
Which method gives accurate results wheneffective diameter is measured withoutconsidering the threadangle? |
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| 38. |
A magnetic compassviii). In computer terminology information meansA. any dataB) raw dataC. processed dataD. large data |
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Answer» PROCESSED data Explanation: |
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| 39. |
TheEscapevelocityfromtheEarthforabodyofmass100gis11.2km/s.Whatwillbeitsvalueforabodyof20g?Justify. |
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Answer» Answer: 11.2kms-1 Explanation: Escape velocity is INDEPENDENT of the mass of the PROJECTED BODY provided the air resistance is neglected. Hence, the escape velocity of 10kg10kg of the iron BALL projected from the EARTH is same that of escape velocity of 10g10g projected from the earth i.e., 11.2kms−1 |
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| 41. |
Let(V0) and(ve)representtheorbitalvelocityandescapevelocityofasatellitecorrespondingtoacircularorbitofradiusR.Derivetherelation betweenthem. |
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Answer» Answer: PLEASE WRITE a GOOD but I don't KNOW what is this I don't UNDERSTAND |
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| 42. |
Derivethetime period ofsimpleharmonic oscillator. |
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Answer» Answer: The angular frequency ω , PERIOD T, and frequency f of a SIMPLE harmonic OSCILLATOR are given by ω=√km ω = k m , T=2π√mk,andf=12π√km T = 2 π m k , and f = 1 2 π k m , where m is the mass of the system and k is the FORCE constant. |
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| 43. |
Why doesn't the atmosphere pressure |
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Answer» The REASON we can't FEEL it is that the air within our bodies (in our lungs and stomachs, for example) is exerting the same pressure outwards, so there's no pressure difference and no NEED for us to exert any EFFORT |
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| 44. |
@ Methods like artificiallike artificial insemination and embryotransplantused for |
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Answer» METHODS like artificial insemination and embryo transplant are mainly used for improving the quality and QUANITIY of ANIMAL products |
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| 45. |
Ifwork done =f×displacement. Then if we complete a round of athletic track,the displacement is (0)so,work done =f×0 =0whyeven if work is done,i.e, running |
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Answer» W = F * d: ... We know that work done is defined as the multiplication of magnitude of DISPLACEMENT d and the component of the force that is in the DIRECTION of displacement. Work Done Formula. Work done via force (F) is EQUAL to the change in kinetic energy. Explanation: W = F * d: ... We know that work done is defined as the multiplication of magnitude of displacement d and the component of the force that is in the direction of displacement. Work Done Formula. Work done via force (F) is equal to the change in kinetic energy. |
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| 46. |
इन ऑब्जेक्ट ऑफ मास एम एस गिफ्ट ऑन द फ्लोर ऑफ दैट व्हाट विल बी द अपेरेंट वेट ऑफ द ऑब्जेक्ट पेन रिलीफ मूव्स विद कांस्टेंट स्पीड डाउनलोड |
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Answer» Answer: it is the process of transferring or transmitting a MESSAGE to between TWO PEOPLES MOBILE phones postal letters are examples of personal communication. н๏pε ¡т нεℓpร ყ๏น |
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| 47. |
'तमुपेत्य' विग्रहं कि? |
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Answer» i DONT know the ANSWER PLZ mark me as BRAINLIEST ❤️✨ |
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| 48. |
Name the physical quantity that corresponds to force for rotational motion. Write the relation of this physical quantity with the moment of inertia of the body on which it nets |
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Answer» Answer: (i) RATE of change of ANGULAR momentum REPRESENTS torque. (ii) MOMENT of linear momentum represents angular momentum. |
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| 49. |
Define Newton all 3 laws in short I mark him brainlist |
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Answer» Answer: 1) an object will not change its motion UNLESS a force acts on it. 2) the force on an object is equal to its mass times its acceleration. 3) when TWO objects interact, they apply FORCES to each other of equal MAGNITUDE and opposite direction. |
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| 50. |
16. ऊष्मा का S.I. मात्रक है |
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Answer» ऊष्मा (HEAT) या ऊष्मीय ऊर्जा (heat ENERGY), ऊर्जा का एक रूप है जो ताप के कारण होता है। ... किसी पदार्थ के गर्म या ठंढे होने के कारण उसमें जो ऊर्जा होती है उसे उसकी ऊष्मीय ऊर्जा कहते हैं। अन्य ऊर्जा की तरह इसका मात्रक भी जूल (JOULE) होता है पर इसे कैलोरी (CALORIE) में भी व्यक्त करते हैं। |
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