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. |
The construction and function of the motor |
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Answer» construction of motor MANAGEMENT Explanation: the construction of motor SPEED =distance/time |
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| 2. |
Read the construction and function of the electric motor |
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Answer» Answer: The electric motor construction can be DONE using the rotor, bearings, stator, air gap, windings, commutator, etc. The rotor in an electric motor is the MOVING part, and the main function of this is to rotate the shaft for generating the MECHANICAL power. An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a WIRE winding to generate FORCE in the form of torque applied on the motor's shaft. |
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| 3. |
What is Monera???Gud Morning Armies & Blinkes...(≧▽≦) |
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Answer» My intro Sneha class 9th and i m an army girl:) What about U? |
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| 4. |
What is a strong acid |
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Answer» Explanation:
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| 5. |
Joule/ coulomb is the same as? |
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Answer» Answer: Joule is a unit for work done and coulomb is the unit for the charge. The potential is DEFINED as the ratio of the work done to the charge and the unit of the potential difference is volt. HENCE, one joule PER coulomb is EQUAL to the unit of the potential difference. Therefore it will be equal to one Volt.#masterofmyCEO |
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| 6. |
The length, breadth and thickness ofa rectangular sheet of metal are 4.234m, 1.005 m, and 2.01 cm respectively.Give the area and volume of the sheet tocorrect significant figures. |
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Answer» Answer: volume equals to length into BREATH into height hair thickness is your height REMEMBER to change unit metre into CENTIMETRE or centimetre so therefore you can EASILY got your answer. MARK me as brainliest |
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| 7. |
Name the lens that always produce erect diminished &virtual image |
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Answer» Explanation:
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| 8. |
Write two other examples for derived units |
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Answer» Examples of derived units are - kg/m³ and kg.m/s².
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| 9. |
If 178.5 pm is the wavelength of X-ray line of copper (atomic number29) and 71 pm is the wavelength of the X-ray line of molybdenum(atomic number 42) then the value of a and b in Moseley’s equationare |
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Answer» Communication is simply the act of TRANSFERRING INFORMATION from one place, person or group to another. Every communication involves (at least) one sender, a message and a recipient. ... These include our emotions, the cultural situation, the medium USED to communicate, and even our location. |
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| 10. |
the minute hand of a wall clock is 10 cm long find its displacement and the distance covered from 10 a.m. to 10:45 a.m. |
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Answer» Answer: DISTANCE = 47.1CM , DISPLACEMENT = 35.7CM Explanation: Here R=10cm Let's break it into two parts, From 10 am to 10.30 am minute HAND rotates 180° from 0 minute to 30 minutes. Hence distance covered is half the circle means semi circle. distance= perimeter of semi circle distance(1) = πR = 3.14×10= 31.4 cm now 1/4th of circle covers distance 10.30AM to 10.45 AM i.e. 90 degree. SO, distance(2) = πr/2 = 31.4/2 = 15.7cm Total distance = 31.4+15.7 = 47.1cm Displacement is shortest distance between two points. i.e. distance between 10.00 and 10.45 in clock wise direction. displacement is twice the length of the hand Displacement= 2×r= 2× 10= 20cm 1/4 distance between 10.30 to 10.45 = 15.7cm total displacement, = 20+15.7cm = 35.7cm I HAVE JUST TRIED TO ANSWER THE QUESTION TO MY BEST. MUST COMMENT ME FOR ANY ERROR YOU FOUND IN ANSWER AS I WANT TO KNOW MY MISTAKE.PLZ LIKE AND MARK MY ANSWER AS BRAINLIEST IF YOU FOUND MY ANSWER HELPFUL. |
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| 11. |
9.In physics the term power means therate of doing work. If certain agent isable to complele w unit of work in Tsecond we have? |
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Answer» Answer: yes you are right in Physics , power means RATE of doing work. so if anyone is ABLE to complete w unit of work in 30 second then we say that it it power is w upon T . so we got power and SI unit of power is watt. |
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| 12. |
explain faraday's experiment of magnet and coil the factors can be observed when the magnet is replaced by a coil carrying current what are the conclusions that can be drawn by you from this experiment state electromagnetic induction with the help of this experiment |
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Answer» Answer: Faraday's MAGNETIC Field Induction Experiment Explanation: When Michael Faraday made his discovery of ELECTROMAGNETIC induction in 1831, he hypothesized that a changing magnetic field is necessary to INDUCE a current in a nearby circuit. To test his hypothesis he made a coil by wrapping a paper CYLINDER with wire. |
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| 14. |
What is the change in velocity of the object? |
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Answer» Answer: The velocity of an object is the speed of an object moving in a definite direction. The RATE of change in the velocity of an object per unit TIME is referred as ACCELERATION and the kind of motion is known as ACCELERATED motion. |
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| 15. |
Akio draws the ray diagram shown. Above a horizontal line running through the center of a double concave lens, a large car to the left of a double concave lens and a small car to the right. On the line at the front of the large car a point labeled Focal point. On the line to the right of the small car a point labeled Focal point. A dotted line 2 goes from the left focal point up and right through the center top of the lens and then solid to a label 2. A straight line goes from the top of the car straight to the center of the lens. A solid line goes from through the lens, becomes dotted, and goes to the right Focal point. A solid line goes down and right from the top of the car through the center of the lens to a label 1 below the right Focal point. A straight dotted line starts at the intersection of 1 and 2, becomes solid in the center of the lens, and goes to a label 3. Which best explains how to correct Akio’s mistake? |
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Answer» दिखाए गए रे डायग्राम को AKIO ड्रॉ करता है। एक डबल अवतल लेंस के केंद्र के माध्यम से चलने वाली एक क्षैतिज रेखा के ऊपर, एक बड़ी कार एक डबल अवतल लेंस के बाईं ओर और दाईं ओर एक छोटी कार है। बड़ी कार के सामने स्थित लाइन पर फोकल बिंदु पर एक बिंदु लेबल होता है। छोटी कार के दाईं ओर स्थित रेखा पर फोकल बिंदु को लेबल किया जाता है। एक बिंदीदार रेखा 2 बाएं फोकल बिंदु से ऊपर और दाईं ओर से लेंस के केंद्र के माध्यम से जाती है और फिर एक लेबल पर ठोस होती है। एक सीधी रेखा कार के शीर्ष से सीधे लेंस के केंद्र तक जाती है। लेंस के माध्यम से एक ठोस रेखा जाती है, बिंदीदार हो जाती है, और दाएं फोकल बिंदु पर जाती है। एक ठोस रेखा लेंस के केंद्र के माध्यम से कार के ऊपर से नीचे और दाएं फोकल बिंदु के नीचे 1 लेबल तक जाती है। एक सीधी बिंदीदार रेखा 1 और 2 के चौराहे पर शुरू होती है, लेंस के केंद्र में ठोस हो जाती है, और एक लेबल पर जाती है 3. जो सबसे अच्छा बताती है कि कैसे आको की गलती को ठीक किया जाए? |
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| 16. |
C. Very Short Answer Type Questions1. What causes a rolling ball to stop?2. What causes friction? |
Answer»
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| 17. |
Explain with exampl how technology is related to physics and how physics is relationship to technology??It has two answer tricky question don't get confused |
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Answer» Broadly speaking, physics and technology both constitute science. Physics is the HEART and technology is the body of science. The application of the principles of physics for PRACTICED PURPOSES becomes technology, e.g.,(i) Aeroplanes fly on the basis of Bernoulli's theorem. and third laws of motion. ✍️ hope this is helpful for you ✍️ |
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| 18. |
What is the initial velocity of the object |
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Answer» who will show anyone INTERESTED FEMALE for sx uuf-jszj-xav |
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| 19. |
B) For a thermodynamic system, isobaric coefficient of volume expansion (a) andisothermal compressibility (B) are defined as1 ava=)и отp1 avB=-У дрT TShow that for an isochoric change, ß dp = a dT. |
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Answer» Explanation: Given, \alpha = \frac{1}{V}(\frac{dV}{dT})_pα= V 1
( dT dV
) p
\beta = - \frac{1}{V}(\frac{dV}{DP})_Tβ=− V 1
( dP dV
) T
Now, from the ideal GAS equation, PV=nRTPV=nRT V=\frac{nRT}{P}V= P nRT
Now, taking the DIFFERENTIATION with respect to the corresponding terms, \frac{dV}{dT}=\frac{NR}{P} dT dV
= P nR
if P is constant then, (\frac{dV}{dT})_P=\frac{nR}{P}...(i)( dT dV
) P
= P nR
...(i) now, taking the differentiation with respect to P, (\frac{dV}{dP})_T=\frac{nRT}{P^2}...(ii)( dP dV
) T
= P 2
nRT
...(ii) Now, taking the ratio of (i)(i) and (ii)(ii) \frac{(\frac{dV}{dT})_P}{(\frac{dV}{dP})_T}=\frac{\frac{nR}{P}}{\frac{nRT}{P^2}} ( dP dV
) T
( dT dV
) P
= P 2
nRT
P nR
\frac{(dP)_T}{(dT)_P}=\frac{P}{T} (dT) P
(dP) T
= T P
(dP)_T=(dT)_P\times \frac{P}{T}(dP) T
=(dT) P
× T P
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| 20. |
Is Radiation has any matter state ? |
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Answer» matter particles. Matter is anything MADE up of fundamental fermions. ... Gamma and x-ray radiation are made up of high-energy PHOTONS, and thus are not matter. Beta and ALPHA radiation are made up of electrons and Helium NUCLEI, respectively, and thus are made up of matter. |
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| 21. |
What is the initial velocity of the object? |
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Answer» Answer: Therefore, the initial VELOCITY is the velocity of the object before the effect of acceleration, which causes the change. After accelerating the object for some amount of time, the velocity will be the final velocity. Explanation: PLEASE GIVE THANKS to all my answers and please mark as brilliant and please FOLL me |
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| 22. |
2. Give two examples for a contact force?C |
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Answer» Explanation: Examples of contact FORCES include: ☆ Reaction force. An OBJECT at REST on a surface EXPERIENCES reaction force . ... ☆ Tension. An object that is being stretched experiences a tension force. ... ☆ Friction. TWO objects sliding past each other experience friction forces. ... ☆ Air resistance. |
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| 23. |
What does the path of an objectlook like when it is in uniformmotion? |
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Answer» Answer: The PATH of an object look like when it is in UNIFORM motion that equal distance covered on equal INTERVAL of TIME |
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| 24. |
1. What is the gauge pressure of a tall water bottle that is 37.81 cm tall.Answer: The gauge pressure is 3710 Pa2. Find the absolute pressure, assuming that the atmospheric pressure is 1.11952×105 Pa. Answer: ? |
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Answer» Answer: The gauge pressure of 3×105N/m23×105N/m2 must be MAINTAINED in the main WATER pipes of a CITY how MUCH work must be done to pump 50,000 m3m3 of water at a pressure of 1.0×105N/m2 Explanation: please mark me as brainlist |
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| 25. |
Find the situation in which the magnitude of distance and displacement becomes equal? |
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Answer» partial go in straight line and not come back for this condition we can accelerate partial then DISTANCE equal to DISPLACEMENT Explanation: I HOPE that is helpful for you |
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| 26. |
Explain how the index refraction given is determined given the speed of light in a medium up |
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Answer» Explanation: The REFRACTIVE index of a medium (n) is equal to the SPEED of LIGHT (c) divided by the VELOCITY of light through the medium (v). ... Light will TRAVEL faster through medium A at a velocity equal to the speed of light divided by the refractive index. |
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| 27. |
In an along thequod to the number of election in the trand 1of eldgon in a chalcatbet shellfor the manyape there is ouboet shellcleis what is the atomic number of elemet?capite the electronic Configuration of the elemet?elections are |
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Answer» Answer: we first ARRANGED the subtance in the SPDF form WER the element can fecilorated |
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| 28. |
The length, breadth and height of a metal block of mass 160 kg are 50 cm, 40 cm and 20 cm respectively. Calculate the density of the metal block. |
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Answer» Answer: 0.004 Explanation: d=m/v d=0.004 |
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| 30. |
Write down the following measurements in the descending order of their values? 5 mm , 5 nm , 5 cm |
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Answer» Answer: the descending ORDER to the given MEASUREMENTS is: 5cm>5MM>5nm |
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| 31. |
Which of the following models a wave moving along the medium?a. pulseb. sine wavec. transversed. longitudinal |
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Answer» Answer: Explanation: Transverse models a WAVE moving along the medium. I HOPE it helped you!! Thanks!! |
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| 32. |
The waves are characterized bya. transferring wavelengthb. stationary matterc. transferring matterd. transferring energy |
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Answer»
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| 33. |
Sound waves in air are a series ofa. periodic disturbances.b. periodic condensations and rarefactions.c. high- and low-pressure regions.d. all of the abovee. none of the above |
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Answer» your answer is d |
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| 34. |
Whatis eutectic phase diagram? |
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Answer» Answer: When solid solubility is limited and the melting points of the components are not vastly different, a Eutectic Phase diagram usually results. Explanation: For example, the Pb-Sn phase diagram . As there is complete liquid solubility, the liquid phase extends over all compositions above the melting temperatures of the components. The solid phase at the left end is lead-rich Liquidus I: boundary between L and L + α regions Liquidus II: boundary between L and L + β regions Solidus I: boundary between α and L + α regions Solidus II: boundary between β and L + β regions Solvus I: boundary between α and α + β regions Solvus II: boundary between β and α + β regions The THREE two-phase regions are separated by a horizontal line corresponding to the temperature Te called the eutectic temperature. Below the eutectic temperature, the material is fully solid for all compositions. The composition which remains fully liquid up to the eutectic temperature during cooling is called the eutectic composition ce. At the eutectic temperature, the following eutectic reaction takes place: cooling-------> L↔α+β <------ heating |
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| 35. |
Draw the d-t graph for a car parked under a tree |
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| 36. |
A physicist is constructing a solenoid. She has a roll of insulated copper wire and a power supply. She winds a single layer of the wire on a tube with a diameter of dsolenoid = 10.0 cm. The resulting solenoid is ℓ = 90.0 cm long, and the wire has a diameter of dwire = 0.100 cm. Assume the insulation is very thin, and adjacent turns of the wire are in contact. What power (in W) must be delivered to the solenoid if it is to produce a field of 7.20 mT at its center? (The resistivity of copper is 1.70 ✕ 10−8 Ω · m.) |
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Answer» Answer: What is the equation of the LINE which passes through (4,-5) and is perpendicular to 3x + 4y + 5 = 0? 2013 II (a) 4x - 3y - 31 = 0 (b) 3x – 4y - 41 = 0 (c) 4x + 3y - 1 = 0 (d) 3x + 4y + 8 = 0 |
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| 37. |
in an stm experiment, a 50 mV potential is applied across the tip and the sample surface. assuming a work function barrier height of 3eV. estimate the tip to surface separation at which the electron tunneling probability approaches 10 minus 7. assume the free electron mass for the calculation. |
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Answer» Answer: Communication is simply the ACT of transferring information from one place, person or group to another. Every communication INVOLVES (at least) one sender, a MESSAGE and a recipient. ... These include our emotions, the cultural SITUATION, the medium USED to communicate, and even our location. |
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| 38. |
What is the charging by induction? |
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Answer» Explanation: ELECTROSTATIC INDUCTION, also KNOWN as "electrostatic influence" or simply "influence" in Europe and LATIN America, is a redistribution of electric CHARGE in an object, caused by the influence of nearby charges |
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| 39. |
Asource emiting 1000 Keltz frequentmoothing, away from Stilissarywilli spead of ze m/s calentate change frequency-Wavesobserver |
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| 40. |
pts 10. What is the average power expended to accelerate a bullet of 15grams mass to a speed of 900m/sec in 1.3 milliseconds? |
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Answer» SORRY I don't no your answer |
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| 41. |
A piece of Styrofoam has a charge of -0.004 C and is placed 3.0 m from a piece of salt with a charge of -0.003 C. How much electrostatic force is produced? |
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| 42. |
State and explain right hand screw rule |
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Answer» Explanation: |
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| 43. |
Write rules "Round off" number |
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Answer» HERE IS YOUR ANSWER
PLEASE MARK ME AS BRAINLIST |
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| 44. |
State the laws of vibrating string.What is end correction in the vibrations of aircolumn in a pipe? |
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Answer» Answer: he fundamental FREQUENCY of vibration of a STRETCHED string or wire is given by n=12LTm−−−√ where L is the vibrating length, m the mass per unit length of the string and T the tension in the string. From the above expression, we can state the following three laws of vibrating STRINGS : (1) Law of length : The fundamental frequency of vibrations of a stretched string is invessely proportional to its vibrating length, if the tension and mass per unit length are kept constant. (2) Law of tension : The fundamental frequency of vibrations of a stretched string is DIRECTLY proportional to the square ROOT of the applied tension, if the length and mass per unit length are kept constant. (3) Law of mass : The fundamental frequency of vibrations of a stretched is inversely proportional to the square root of its mass per unit length, if the length and tension are kept constant. |
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| 45. |
4) Guess the name of the atom. if its lastly filled electron(differentiating electron)a. lies in the third orbit.b. lies in p orbitolc. it has value of m = +1d.it is revolving in anti clock wise direction |
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Answer» Answer: Argon Explanation: a. third orbit , n = 3 b. p orbital , l = 1 c. m = +1 , pz orbital d. ANTICLOCKWISE , s = - 1/2 it's electronic configuration is 1S2 2s2 2P6 3s2 3p6 atomic NUMBER = 18 hence it is Argon |
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| 46. |
What is meant by thermal contact and thermal equilibrium.Explain with the help of an everyday example.please answer fast...I want it writr now.! |
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Answer» Answer: Two physical systems are in thermal EQUILIBRIUM if no heat FLOWS between them when they are connected by a path permeable to heat. Thermal equilibrium obeys the zeroth law of thermodynamics. ... The COOLING of a hot object, say in a container of WATER, is an example of an approach to thermal equilibrium. |
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| 47. |
Write a note on combination of error |
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Answer» Explanation: When TWO quantities are added or subtracted, the absolute ERROR in the final result is the sum of the absolute errors in the individual quantities. Explanation: Let two PHYSICAL quantities A and B have measured values A ± ΔA, B ± ΔB respectively, where ΔA and ΔB are their absolute errors. |
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| 48. |
Do black holes explode??yes or no ???! |
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Answer» Answer: NO ASTRONMICAL GIRLWHEN PLANETS AND GRAVITATIONAL STARS DIEAFTER LONG YEARS HE BECOMES BLACK HOLESExplanation: BLACK HOLES IS ALREADY DIE |
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| 49. |
Explain why the electric field lines are intersecting |
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Answer» Answer: Electric LINES of FORCE never INTERSECT because, at the point of intersection, two tangents can be drawn to the two lines of force. This means two DIRECTIONS of the electric field at the point of intersection, which is not POSSIBLE. |
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| 50. |
Plz answer the given question |
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Answer» Explanation: A solar THERMAL plant generates HEAT and electricity by concentrating the sun's energy. That in turn builds steam that HELPS to feed a TURBINE and generator to produce electricity. This is the most common type of solar thermal plant. hope it's HELPFUL |
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