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. |
A heating element is marked 210v 630w .what is the resistance of the element |
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Answer» PLS MARK as the BRAINLIEST |
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| 2. |
An object has moved through a distance . Can it have zero displacement? If yes, support your answer with an example |
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Answer» If yes, support your answer with an example. Answer: Yes, zero displacement is possible if an object has moved through a distance. Suppose a ball starts MOVING from point A and it returns back at same point A, then the distance will be EQUAL to 20 meters while displacement will be zero.Example: If an object travels from point A and REACHES to the same point A, then its displacement is zero. |
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| 3. |
What do you mean by focal point of spherical refracting surface |
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Answer» hey ... the point where refracted RAY intersects the AXIS in a LENS ....either biconacve or biconvex. then it is called focal point... |
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| 5. |
I If a body travels with speed v1v2 v3 for equal intervals of time findaverage speed |
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Answer» however it was a GOOD time for me and the players who have a great TEAM and a team that is a great PLAYER |
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| 6. |
a dentists uses a mirror infront of a decayed tooth at a distance of 4 cm from the tooth to get a 4 times magnified image.use mirror formula to find focal length and nature of the mirror. what is the nature of the object |
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Answer» m=v/u 4=4/u u=1 1/f=1/v-1/u 1/f=1/4_1/1 1/f=-3/4 f=-4/3 |
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| 7. |
Force is a vector quantity . Explain what this means . |
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Answer» Explanation: |
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| 8. |
If there is a object which is made of positive or negative charges is the any chage in mass . |
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Answer» Answer: We can SAY that objects that are CHARGED contain unequal numbers of PROTONS and electrons. Charged objects have an IMBALANCE of charge - either more negative electrons than positive protons or vice VERSA. And neutral objects have a balance of charge - equal numbers of protons and electrons. |
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| 9. |
To S.Im an experiment to study the rolotion bolwoen thosedifference across a resistor and the current througha estudente do corded the following abservation.Charent ICamparesPotential difference v(volts)0:250.650752.0304.0Бо1.25an examining the above observations the teaching askedthe students to rejec one set of reading as the vakswere out of agreement with the rest, which are ofthe above sets of seeding can be die jeded? Calculate themeans value of resistance of the dusiston based onthe semaining for sets of reading |
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Answer» (volts) 0:25 0.65 075 2.0 30 4.0 Бо 1.25 Explanation: QUESTION (volts) 0:25 0.65 075 2.0 30 4.0 Бо 1.25Rest 2) Motion 3) Both REST and motion ce to ANOTHER place 3) Bothar 6) A partie with din direction speed |
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| 10. |
A piece of wire of resistance R is cut into five equalthese parts are then connected in parallel .If the equlualent resistance of the combination is R then the ratio R/ R is |
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Answer» Explanation: 25 |
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| 11. |
Pls solve thisHelp me I will mark you the brainliest answer |
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Answer» phisics Explanation: 29* MARK me the BRAINLIEST |
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| 12. |
Determine the resistance of the carbon resistor in the figure given below |
Answer» The answers for a and b are as follows :a) b) Explanation :
So, for part a : Tolerance for silver = 10 % and multiplier for red = 2 Hence , resistance = And also for part b : Tolerance for gold = 5 % and multiplier for brown = 1 Hence , resistance = |
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| 13. |
Average speed______m/sec? |
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Answer» Answer: 100 Explanation: HOPE it helps bye... |
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| 14. |
Normal temperature kitna hona chahiye |
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Answer» Answer: 37 degrees celsius Explanation: 37 degrees is NORMAL TEMP for a human and MAY differ for other ANIMALS |
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| 15. |
Five electrons have been removed from each atom to form ions. Find the electrostatic force between two such ions when separated by a distance of 4 A°in air |
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Answer» Answer: The charged particles EXERT electrostatic FORCE on each other. According to the Coulomb's law, the electric force is proportional to the product of the charge, and inversely proportional to the square of separation distance between them. Explanation: Two ions with deficit of 5 electrons on each, i.e. charge on both ions is: q 1
= q
= 5 × e
= 5 × 1.6 × 10 − 19
C
= 8 × 10 − 19
C separation distance between both CHARGES, d
= 20
Angstrom
= 2 × 10 − 9
m Finding the electrostatic force (F) between the charge particles The electrostatic force is CALCULATED as: F
= 1 4 π ϵ o × q 1 × q 2 d 2 F
= 9 × 10 9 × ( 8 × 10 − 19 ) 2 ( 2 × 10 − 9 ) 2 F
= 1.44 × 10 − 9
N
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| 17. |
In an experiment to study the relation between the Dooliddifference across a resistan and the current through ita estudents de corded the following abservation.Potential difference VCarent I Campores(volts)0:250.652.0300754.05 0125an examining the above observations the teaching askedthe students to reject ane set of reading as the valuewere out of agreement with the rest, which are ofthe above sets of seeding can be die jeded? Calculate themeans value of eesistance of the rusistou basedanthe semaining for sets of reading |
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Answer» i HOPE ur basedam Explanation: sorry GUY who is this please |
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| 18. |
An athlete runs along a circular track ofcircumference 400 m with a uniform speed 15m/s change in velocity when he runs through adistance of 100 m is :A) 15 m/s B) 21.15 m/sC) 30 m/s D) zero |
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| 19. |
A body is moving with initial velocity of 5ms/s .After 5 seconds what will be its acceleration having velocity of 10 ms/s |
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Answer» v=u+at 10=5+(a)5 5=5a a=1 |
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| 20. |
1.air is necessary for_____2.the colour of an LPG gas flame_______3. the ideal fuel is ______4.the most common fire extingunisher is _____5._______Is an excellent fire extingunisher |
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Answer» Answer: human, ANIMAL,plant Explanation: |
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| 21. |
CianaPage NoDateA piece of wireinto Live equalthen connected inequlualent resistancethen the ratioof resistance R is cutparts. these parts areparallel .st the oggetaof the combination is 'R'R/k is - |
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Answer» QUESTION is incomplete Explanation: |
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| 22. |
Ashok covered a distance of 40 m due east. Then he turned north and further covered a distance of 30 m. What is the total distance covered by him? What is the total displacement? ( |
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Answer» Answer: TOTAL distance covered = 40 + 30 = 70 m Total Displacement = root of (40^2 + 30^2) [Using pythagoras theorom.] = root of (1600 + 900) = root of 2500 = 50 m HOPE IT HELPS PLS MARK IT AS THE BRAINLIEST AND DO FOLLOW ME |
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| 23. |
Please solve this question urgently.Find the total current flowing through circuit. (With whole method) |
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Answer» thanks for asking.... Happy to help u. and keep smiling ALWAYS..... things will be with u 4ever.... GOOD DAY AHEAD....TAKE CARE |
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| 24. |
A projectile will cover Same horizontal distance when The Initial angles of projection are |
Answer» here is the answer.A PROJECTILE will cover Same horizontal DISTANCE when The INITIAL angles of PROJECTION are Complementary to each other. |
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| 25. |
A ray travelling prallel to the principalaxis strikes a convex surface and passesfrom a rarer medium to denser medium |
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Answer» ANSWER: The RAY WOULD CONVERGE TOWARDS the normal. Explanation: |
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| 26. |
1.lemon juice is ____________2.food items are preserved in __________ iron cans3. the electrical charges generated by ___________4.magnitude and intensity of earthquake measured by TCR _________5.Lithosphere of earth is divided into 20 parts called _________ planets. 6.the simplest form of a seismograph is a simple_______7. |
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Answer» citric. plastic chemical hz nine project |
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| 28. |
Can you solve this Q...If yes then send the detail answer.... |
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Answer» OPTION a is correct v should be greater in AIR than in WATER |
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| 29. |
What is the basis difference between masses and weigh of an object....and don't copy from Google Don't spam here |
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Answer» The difference between mass and weight is that mass is the amount of matter in a material, while weight is a measure of how the FORCE of gravity acts upon that mass. Mass is the measure of the amount of matter in a BODY. ... Weight USUALLY is DENOTED by W. Weight is mass MULTIPLIED by the acceleration of gravity (g |
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| 30. |
A tuning fork vibrating with a sonometer wire of length 20cm produces 5 beats per second. The beat frequency does not change if the length of the wire is changed to 21cm. The frequency of the tuning fork must be |
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Answer» Answer: Fundamental frequency is: n = 1/2l √T/m n 1/l assume for 20CM frequency is n1 and for 21 CM frequency is n2 So n1/n2 = 21/20 then n1 = 21x and n2 = 20x Let frequency NF for producing 5 beats so n1 > nf > n2 So n1 - nf = 5 21x - nf = 5 ....(i) And nf - n2 = 5 nf - 20x = 5 .....(ii) from (1) ans (2) we GET x = 205 hz |
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| 32. |
Find the current through different branches and P.D. across 10 ohm resistor in the circuit shown in fig. What is the P.D. across BE? |
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Answer» Explanation: it is a SIMPLE QUESTION you can do it why all the TIME we ask anyone to HELP |
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| 33. |
What do machine do to the force you apply |
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Answer» Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or CHANGING the direction in which the force is applied. ... For the same reason, if a MACHINE increases the distance over which the force is applied, it must apply less force. PLEASE follow me |
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| 34. |
A person walks a distance of 400 metres towards east then turns towards south and travels 300 metre. find total distance travelled and total displacement. |
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| 35. |
Ray diagrams for lenses with proper measurement std 10 |
Answer» taratrugkgeyerhegqfYfjhor4qgglgz ho V OK jp9dgdb CV KL |
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| 36. |
10 short question and answer for acceleration |
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Answer» Answer: Acceleration. Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2).Acceleration is ALSO a vector QUANTITY, so it INCLUDES both MAGNITUDE and direction. Explanation: plz thank me plz follow me plz MARK as brainiest answer |
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| 38. |
a ray travelling parallel to the principal axis strikes a convex surface and passes from denser medium to rarer medium |
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Answer» Answer: PRINCIPAL axis is the imaginary line which passes through pole and center of CURVATURE of the curved surface. When a ray parallel to principal axis travelling from rarer to DENSER medium strikes CONVEX surface, it gets REFRACTED and bends towards the normal. hope it will help you follow me |
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| 39. |
What is the name of physical quantity whichdescribeserate of change of displacement and rateof change of velocity |
Answer» VELOCITYThe PHYSICAL QUANTITY which corresponds to the rate of CHANGE of displacement and the rate of change of velocity are velocity and ACCELERATION.
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| 40. |
a coil has 1500 turns a corrent of 4 A couse a flux of 8mili weber to link the coil self inductance of the coil is, 3H,4H,5H,6H |
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| 41. |
Calculate the resultant resistance of 3 resistors 3ohm,4ohm and 12ohm connected in parallel |
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Answer» Explanation: 1 =1 +1 +1 THEREFORE RESULTANT RESISTANCE HERE=1/3+1/4+1/8 =17 ohm 24 |
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| 42. |
Define instantaneous speed |
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Answer» Answer: SPEED of a PARTICLE or body at a particular INSTANCE of TIME is the INSTANTANEOUS speed and this value is only one at a particular instance of time |
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| 43. |
What is a meaning of baririal |
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Answer» Answer: the ceremony when a dead body is PUT in the ground (buried)........................ ......... OR...................burial is the act of placing a dead person in a grave. ... Often, religious services are given as the body GOES under, and the family and friends gather at the burial to mourn the dead. A TOMBSTONE or other marker is erected after the burial........آپ کی بہت پیاری.............❣❣❣❣❣hope this helps uh...❣❣❣...plz mark as BRAINLIST.....❣❣❣@doll54.....❣❣❣❣❣❣ |
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| 44. |
Ray diagram of convex mirror when the object is near to the mirror |
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Answer» Answer: HEY!!! Here is your answer.... Hope it helps... |
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| 45. |
Slove41c=dash f nemarical |
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Answer» I'm in class 9 so I don't know the answer Explanation: |
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| 46. |
The amonut of charge passing through a cell in 4 second is 12C.Find the current supplied by cell |
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Answer» Answer: Answer is 3 A. Explanation: I=Q/t Here I is current, Q is CHARGE and t is time. I= 12/4 =3 AMPERE |
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| 47. |
Give some examples that shows the state of rest and state of motion are relativen |
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Answer» Answer: |
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| 48. |
What is dimensional formula of electric current |
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Answer» Answer: To answer the CURRENT question that this was merged into (originally CHARGE instead of current), the DIMENSIONAL formula for current is coulombs per second which equals one ampere, or 6.25 X 10^18 electron charges per second (moving past a fixed point in a conducting medium).Explanation: PLZ mark it as BRAINLIEST |
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| 49. |
A convex lens is made up of three different materials as shown in fig(A) and (B). Then how many images do they form? |
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Answer» 2nd one it's 3 |
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| 50. |
10. Weight of object on moona) 1/6 × its weight on earth b) 1/12 × its weight on earth c) 1/18 × its weight on earth d) 1/32 × its weight on earth |
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