67486 + Interview Questions in Secondary School in Physics

1.	The unit vector perpendicular to vectors a = 31+ and 5 -2 -1 -5k is :-। please answer fast to get 12.0 points
Answer» PLEASE FOLLOW me and ADD me to your BRAINLIST ANSWERS please. .

Discussion

2.	आप ब्लॉक ऑफ मास 1.5 केजी प्ले स्टोर 99 फोंस अंडर 10000 कोल्ड बे ए कांस्टेंट होरिजेंटल फोर्स ऑफ 12 पॉइंट टू केजी एफबी कॉफी सेंट ऑफ फ्रिक्शन बिटवीन थे ब्लॉक एंड सर्विस 0.35 डेकोरेशन प्राइस इन रांची
Answer» dtdudyxdexey,SY,tyreyigituriy

Discussion

3.	a metalic wire of resistance r is cut into ten parts of equal length. they are then joined in parallal. what will be total resistance of this parallel combination.
Answer» The resistance of a conductor is DIRECTLY proportional to the length of the conductor. The resistance of the metallic wire, when it is cut into TEN parts of EQUAL length is R= 10R Two such pieces when joined in series, the equivalent resistance of these two parts=r+r=2r= 102R.Series resistance of two parts =2X 10R = 5 ′R 5 such elements are connected in parallel. Therefore the total resistance R ′will beR1 = R1 + R1+ R1 + R1 + R1 = R25Hence R ′ = 25R .

Discussion

4.	Molarity of 29% w/w h2so4 solution whose density is 1.22 g ml-1 is
Answer» : As density = mass per unit volume. Now to FIND out molarity, we know that molarity is MOLES per unit volume of the solute in 1000 LITRE solution of water. Molar mass of H2SO4 is 98g. molarity = 4.09M

Discussion

5.	In the case of interaction between two objects ‘A’ and ‘B’ , prove that the total momentum before collision is always equal to total momentum after collision
Answer» tion:let there be two masses M1 and m2 velocity of m1-u1 m2-u2after COLLISION v1 and v2momentum before collision=m1u1+m2u2 momentum after collision =m1v1+m2v2by newton 3RD law of motion,f1=-f2 during collision m1(v1-u1)/t = -m2(v2-u2)/tm1v1-m1u1 =m2u2-m2v2by transposition m1u1+m2u2=m1v1+m2v2

Discussion

6.	Motion and rest are relative terus a. true b. false c. none
Answer» a)TRUEEXPLANATION:PLEASE FOLLOW me

Discussion

7.	3) When a body moves along a straight line, its motion is called ............. motion
Answer» RECTILINEAR motionExplanation:HOPE it HELPED you!

Discussion

8.	Q1. If P, Q and R are quantities with different dimensions, state which of the following can never be meaningful ?1) (P+Q) R2) PQ+R3)Q/P+RA) (1) and (2)B) (2) and (3)C) (1) and (3)D) (1),(2) and (3)
Answer» If P, Q, R are physical quantities, having DIFFERENT DIMENSIONS, which of the following combinations can NEVER be a meaningful quantity?answer is (P-Q)=R

Discussion

9.	Questions is in the attachment
Answer» NLY been a DAY for me on BRAINLY HII

Discussion

10.	Similarities of lunar and solar eclipse
Answer» An ECLIPSE occurs when one CELESTIAL object obscures another celestial object. In the CASE of a solar eclipse, the MOON moves between the Earth and the sun, thus obscuring the sun. A lunar eclipse occurs when the Earth moves DIRECTLY between the sun and the moon.

Discussion

11.	6. Explain liquid pressure. On what factors doesit depend an how?
Answer» Pressure within a liquid depends only on the density of the liquid, the ACCELERATION DUE to gravity, and the DEPTH within the liquid. The pressure EXERTED by such a STATIC liquid increases linearly with increasing depth.

Discussion

12.	हवा हमारे शरीर पर दबाव डालती है लेकिन हम इसका अनुभव नहीं कर पाते हैं,क्यों
Answer» kyo ki ham HAVA ko CHU nahi SAKTE

Discussion

13.	Universal law of gravitation formula. Best answer, brainliest. Second best will be liked.
Answer» The GRAVITATIONAL force between any two bodies having some MASS can be DETERMINED from Newton's law of gravitation.The force of attraction between bodies is directly proportional to the PRODUCT of their masses and inversely proportional to the square of the distance between them.F=G r 2 Mm .Here, G is called the universal gravitational CONSTANT.

Discussion

14.	The principle of regenerative cooling method is based (a) Adiabatic Expansion(b) Joule - Kevin on delivery(c) Constant Pressure(d) when boiling at low pressure.
Answer» (C).......................

Discussion

15.	Koi mere phle vale question ka ans do.plz
Answer» AAPKA 1 QUESTION kounta thaExplanation:PLEASE MARK me as BRAINLIEST

Discussion

16.	the electrostatic force of repulsion between two positively charged ions carrying equal charge is 7.4×10^-9N, when they are separated by a distance of 5×10^-10m . What is the value of charge ? How many electrons are missing from each ion?
Answer» Number of missing ELECTRON from each ion is 3Explanation : GIVEN : The ELECTROSTATIC forve of repulsion between two positively charged ions CARRYING equal charge is 7.4× 10⁻⁹ N Distance of separation , d = 5× 10⁻¹⁰m = 5A⁰ We have to find the number of electron mission from each ions Let US suppose charges is q₁ = q₂ = q (given equal charges) Let n be the number of electron missing Using columb's law F = kq²/r² q²= F× r² /k q²= 7.4 × 10⁻⁹ × (5× 10⁻¹⁰) ²/9× 10⁹ q²= 7.4×25× 10⁻²⁹/9×10⁹ q² = 20.56 × 10⁻³⁸ /9q = √20.56 ×10³⁸ ≈ 4.5×10⁻¹⁹ C as q = ne so, n = q/e = 4.5×10⁻¹⁹/1.6×10⁻¹⁹ [∵Charge of electrone is 1.6×10⁻⁹C]n = 2.81 roundly n = 3 Since, Number of electron missing from each ion is 3 .

Discussion

17.	A constant force of 5N acting on a particle and displace it from x=-5 cm to x=5 cm then calculate work.
Answer» 0.5JExplanation:Work DONE = FORCE . displacement = 5. (5-(-5)) = 5× 10 =50 Ncm JouleHope you understand it.......

Discussion

18.	A sphere of 1.0 m radius at 0 degree celcius is heated to 100 degree celcius and its radius is found to be 1.01 m .what is the coefficients of cubical expansion of the material of the sphere
Answer» COEFFICENT of VOLUME expansion =V/ VΔT = r^3 /R^3 ΔT =1 /(1.01)3 (100)= 1 / 1.030301 (100) =1/103.03 = .0097 =97* 10^-4Explanation:

Discussion

19.	How many number of images are formed, when two plane mirrors are inclined at an angle of 36 degrees? please someone reply quick
Answer» If the image of an object is viewed in two plane mirrors that are inclined to each other more than one image is FORMED. The number of images depends on the angle between the two mirrors.The number of images formed in two plane mirrors inclined at an angle A to each other is given by the below formula.Number of images n= 360/A - 1The number of images formed n=(360/A)-1, if (360/A) is even integer.If (360/A) is odd integer, the number of images formed n=(360/A)-1 when the object is KEPT symmetrically, and n=(360/A) when object is kept asymmetrically.If (360/A) is a fraction, the number of images formed is EQUAL to its integral part.As the angle gets smaller (down to 0 degrees when the mirrors are facing each other and PARALLEL) the smaller the angle the greater the number of images.Here, the angle A between the mirrors is 40 degrees.Case (a): The object is symmetrically placed. The number of images formed = (360/40)-1, we get 8 images.Case (b): The object is asymmetrically placed. The number of images formed = (360/40), we get 9 images.Hence, the number of images formed are 8 and 9 respectively.Explanation:mark me as brainliest I will follow you

Discussion

20.	In this electromagnetic induction by coils experiment, why the galvanometer in the secondary coil is not deflecting even though the current is passed continuously in primary coil?
Answer» due to decrease in ELECTRIC current decrease in magnetic FIELD strength in it. ... when current pass through the galvanometer it gives a deflection but in opposite DIRECTION. iii) when current continues to FLOW in the coil C₁, there is no deflection seen in the galvanometer due to no change in magnetic lines of FORCE.

Discussion

21.	How to balance NaOH +H2so4 -Na2so4+H2o
Answer» The BALANCED FORM will be...2NaOH + H2so4 ----- Na2so4 + 2H2O

Discussion

22.	A light ray is passing through a convex lens having focal length of 15 cm. Ifthe object is at the centre of curvature(C7), can you say the object distanceand image distance? Why? AS,
Answer» ALLY SORRY i don't no this QUESTION once again sorry......

Discussion

23.	If the r1 vector and r2 vector is position vector then displacement vector is
Answer» gsgscsjjdjdjdjdjddndndxjxnxhxnxjcjcjc HD DJ didbdiExplanation:bhdhfhfbhr he HD UR DU

Discussion

24.	Two bodies A and B are connected by a string over a pulley and a disc slides over the string Then B+C cannot be treated as a system the reason is
Answer» jbjbkbkbkvkvExplanation:xgchbm jvjvjbjbjvviviiggggjvjvjvvjjcuccujcuccuigbkln

Discussion

25.	А square surface of side meters isthe plne of the plane. A uniformFeld & also in the plane of thepaperis limited only to lowes halfof the square surface. The electricflux is SI units asociated with thesurface is
Answer» SORRY I didn't UNDERSTAND your QUESTION sorry

Discussion

26.	Hi dur123 pra45....,..,.,.,.,..,.,.,.,.,.,..,.,.,.,..,.,.,
Answer» PLEASE MARK ME A BRAINLIEST ANSWER PLEASE DEAR

Discussion

27.	A A light ray enters in a liquid at an angleof incidence 45 and it gets refracted on liquidangle retraction 30: Find the retroactiveIndex of the liquid? As: n=1-414
Answer» because REFRACTION of lightHope it HELPS you

Discussion

28.	Electroplating is based on
Answer» - ELECTROLYSIS MAYBE I THINK

Discussion

29.	A particle moves in a straight line with a uniform acceleration a. Initial velocity of the particle is zero. Find the average velocity of the particle in first 's' distance.Solution2Ssot late and tat&as 2812
Answer» L don't KNOW the ANSWER

Discussion

30.	The teachersaid to student wheybesentclassthis daysالحمد
Answer» TION:No ONE can ANSWER this QUESTION

Discussion

31.	What is nitrogen cycle
Answer» tion:the series of PROCESSES by which NITROGEN and its compounds are interconverted in the environment and in LIVING organisms, including nitrogen FIXATION and decomposition.

Discussion

32.	Varun apologised for his rudeness. He felt at peace with him
Answer» I can't UNDERSTAND your QUESTION

Discussion

33.	The Density Of A Substance ........................... With Change In Size a. Variesb. Remains The Same
Answer» a............ I WISH this is CORRECT ANSWER

Discussion

34.	Plz who knows other applications of viscosity
Answer» SORRY I don't knowplease follow me and make ANSWER as brainlisted PLSSSSSSSSSSSSSSSSSS

Discussion

35.	Where is ashoka stumbh????
Answer» Explanation:The pillars of Ashoka are a series of COLUMNS dispersed throughout the Indian subcontinent, erected or at LEAST INSCRIBED with edicts by the MAURYAN Emperor Ashoka during his reign from C. 268 to 232 BC. Ashoka used the expression Dhaṃma thaṃbhā, i.e. "pillars of the Dharma" to describe his own pillars

Discussion

36.	To find the volume of a piece of wood, the student has a measuring cylinder, a supply of water and the brass object in (a). The piece of wood and the brass object are small enough to be placed in the measuring cylinder. a) Suggest why does the piece of wood not sink in the water? b) Describe what the student does to find the volume of the piece of wood, stating the measurements that she makes and any calculations required
Answer» I cannot UNDERSTAND your QUESTION

Discussion

37.	Although pinhole camera can produce good photo lens camera are widely used give two reason
Answer» TION:PLEASE follow me and marke my ANSWER as brainleast please

Discussion

38.	The speed of light in a transparent medium is 0.6 times that of its speed in vacuum What is the refractive index of medium?
Answer» REFRACTIVE index mu=speed of LIGHT in air/speed of light in MEDIUM. so mu=c/vgiven, v=0.6cso, mu=c/0.6ctherefore, mu=1.67Explanation:i hope you KNOW the symbol of mu.I dont have it in my keyboard.hope it helps U. thanku!

Discussion

39.	Air at atmospheric pressure 760mmHg is trapped in a container. When the piston of the container is pulled out slowly so that the volume is increased by 25%, the temperatureremaining constant, what will be the pressure of the air?
Answer» tion:When the PISTON is pulled out slowly so that the volume is INCREASED by 20% the temperature REMAINING constant the pressure of the air ...

Discussion

40.	The resisting force to movement of an object is called
Answer» hope it helpsplease MARK me BRANLIEST and follow me plz Explanation:the RESISTING force to movement of an object is CALLED as INERTIA

Discussion

41.	.A stone dropped from a certain height can reach the ground in 5 s. It is stopped after 3 seconds of its fall and then allowed to fallagain. Find the time taken by the stone to reach the ground for theremaining distance.A.2sB.4sC.6sD.8sE.10s
Answer» 2Explanation:because if we STOP the STONE

Discussion

42.	A cone made completely of metal therefore it is not hallow has a base of radius 14 cm and height of 7 cm we melt it and recast it into sphere what will be the radius of sphere
Answer» 1/3πr^2h=4/3πr^3r^h=4r^314×14×7=4r^314×14×7/4=r^37×7×7=r^3343=r^3r=7 CM

Discussion

43.	Calculate the pressure exerted on the floor when an elephant who weighs 2400 N stands on one foot which has an area of 0.4 m2 .
Answer» 6000 Pa or 6000 N/m²Given Parameters :Force = 2400 NArea = 0.4 m²Unknown :Pressure = ?Explanation:The pressure EXERTED by an OBJECT given the force of the object and the area can be FOUND by using the FORMULA :-THEREFORE, the pressure exerted on the floor is 600 Pa or 600 N/m².

Discussion

44.	3. A force F = (3xN)i +(4N)ſ, with x in meter, acts on a particle, changing only the kinetic energy of the particle.How much work is done on the particle as it moves fromcoordinates (2 m, 3 m, 5 m) to (3 m, 0 m, 6 m)? Does thespeed of the particle increase, decrease, or remain thesame?
Answer» yetryryrrryr to be SHARED with ONE of the SCHEDULE

Discussion

45.	Discuss briefly the need of environment in physical education
Answer» This Is the ANSWER but I'm not SURE if this is CORRECT or not..

Discussion

46.	At stopping potential, the photoelectrons have (A) K.E. = 0(B) P.E. = 0(C) K.E. = P.E. (D) K.E. = maximum
Answer» (B) P.E.=0...........

Discussion

47.	Tuglay ang mga buso? . Paano nakilala ng Tuglay ang kaniyang pag-ibig? Paano sila nagkatu-luyan sa huli?
Answer» what is this I don't UNDERSTAND

Discussion

48.	A wire of resistane R is cutinto five equal pieces- The pieces are connected inparallel Find theequivalent resistance of thecombination
Answer» Let the Resistance of the ORIGINAL wire be R.Resistance of each PIECE= R/5When the 5 PIECES are connected in parallel,1/Rp=5/R+5/R+5/R+5/R+5/R=>1/Rp=25/R=>Rp=R/25

Discussion

49.	Can we measure the velocity of athletes in the given figure? Why?
Answer» While no exact DEFINITION exists, it's safe to summarize a sport velocity-tracking device as an instrument able to measure the instantaneous speed of a body, be it a human or PROJECTILE such as a ball.Explanation:PLZ make me as brainliest

Discussion

50.	Mirror is "tu"6) The magnification produced by a mirror is +4What does it mean?
Answer» I don't KNOW ANSWER for your question Instead SEARCH in GoogleExplanation:I don't know answer for your question Instead search in Google

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The unit vector perpendicular to vectors a = 31+ and 5 -2 -1 -5k is :-। please answer fast to get 12.0 points​

a metalic wire of resistance r is cut into ten parts of equal length. they are then joined in parallal. what will be total resistance of this parallel combination.​

Molarity of 29% w/w h2so4 solution whose density is 1.22 g ml-1 is​

In the case of interaction between two objects ‘A’ and ‘B’ , prove that the total momentum before collision is always equal to total momentum after collision

Motion and rest are relative terus a. true b. false c. none​

3) When a body moves along a straight line, its motion is called ............. motion​

Q1. If P, Q and R are quantities with different dimensions, state which of the following can never be meaningful ?1) (P+Q) R2) PQ+R3)Q/P+RA) (1) and (2)B) (2) and (3)C) (1) and (3)D) (1),(2) and (3)​

Questions is in the attachment ​

Similarities of lunar and solar eclipse​

6. Explain liquid pressure. On what factors doesit depend an how?​

हवा हमारे शरीर पर दबाव डालती है लेकिन हम इसका अनुभव नहीं कर पाते हैं,क्यों​

Universal law of gravitation formula. Best answer, brainliest. Second best will be liked.​

The principle of regenerative cooling method is based (a) Adiabatic Expansion(b) Joule - Kevin on delivery(c) Constant Pressure(d) when boiling at low pressure.​

Koi mere phle vale question ka ans do.plz​

the electrostatic force of repulsion between two positively charged ions carrying equal charge is 7.4×10^-9N, when they are separated by a distance of 5×10^-10m . What is the value of charge ? How many electrons are missing from each ion?​

A constant force of 5N acting on a particle and displace it from x=-5 cm to x=5 cm then calculate work.​

A sphere of 1.0 m radius at 0 degree celcius is heated to 100 degree celcius and its radius is found to be 1.01 m .what is the coefficients of cubical expansion of the material of the sphere​

How many number of images are formed, when two plane mirrors are inclined at an angle of 36 degrees? please someone reply quick

In this electromagnetic induction by coils experiment, why the galvanometer in the secondary coil is not deflecting even though the current is passed continuously in primary coil?

How to balance NaOH +H2so4 -Na2so4+H2o​

A light ray is passing through a convex lens having focal length of 15 cm. Ifthe object is at the centre of curvature(C7), can you say the object distanceand image distance? Why? AS,​

If the r1 vector and r2 vector is position vector then displacement vector is​

Two bodies A and B are connected by a string over a pulley and a disc slides over the string Then B+C cannot be treated as a system the reason is ​

А square surface of side meters isthe plne of the plane. A uniformFeld & also in the plane of thepaperis limited only to lowes halfof the square surface. The electricflux is SI units asociated with thesurface is​

Hi dur123 pra45....,..,.,.,.,..,.,.,.,.,.,..,.,.,.,..,.,., ​

A A light ray enters in a liquid at an angleof incidence 45 and it gets refracted on liquidangle retraction 30: Find the retroactiveIndex of the liquid? As: n=1-414​

Electroplating is based on​

A particle moves in a straight line with a uniform acceleration a. Initial velocity of the particle is zero. Find the average velocity of the particle in first 's' distance.Solution2Ssot late and tat&as 2812​

The teachersaid to student wheybesentclassthis daysالحمد​

What is nitrogen cycle​

Varun apologised for his rudeness. He felt at peace with him​

The Density Of A Substance ........................... With Change In Size a. Variesb. Remains The Same​

Plz who knows other applications of viscosity

Where is ashoka stumbh????​

Although pinhole camera can produce good photo lens camera are widely used give two reason​

The speed of light in a transparent medium is 0.6 times that of its speed in vacuum What is the refractive index of medium?​

Air at atmospheric pressure 760mmHg is trapped in a container. When the piston of the container is pulled out slowly so that the volume is increased by 25%, the temperatureremaining constant, what will be the pressure of the air? ​​

The resisting force to movement of an object is called​

.A stone dropped from a certain height can reach the ground in 5 s. It is stopped after 3 seconds of its fall and then allowed to fallagain. Find the time taken by the stone to reach the ground for theremaining distance.A.2sB.4sC.6sD.8sE.10s​

A cone made completely of metal therefore it is not hallow has a base of radius 14 cm and height of 7 cm we melt it and recast it into sphere what will be the radius of sphere ​

Calculate the pressure exerted on the floor when an elephant who weighs 2400 N stands on one foot which has an area of 0.4 m2 .

3. A force F = (3xN)i +(4N)ſ, with x in meter, acts on a particle, changing only the kinetic energy of the particle.How much work is done on the particle as it moves fromcoordinates (2 m, 3 m, 5 m) to (3 m, 0 m, 6 m)? Does thespeed of the particle increase, decrease, or remain thesame?​

Discuss briefly the need of environment in physical education

At stopping potential, the photoelectrons have (A) K.E. = 0(B) P.E. = 0(C) K.E. = P.E. (D) K.E. = maximum​

Tuglay ang mga buso? . Paano nakilala ng Tuglay ang kaniyang pag-ibig? Paano sila nagkatu-luyan sa huli?​

A wire of resistane R is cutinto five equal pieces- The pieces are connected inparallel Find theequivalent resistance of thecombination ​

Can we measure the velocity of athletes in the given figure? Why?​

Mirror is "tu"6) The magnification produced by a mirror is +4What does it mean?​

The unit vector perpendicular to vectors a = 31+ and 5 -2 -1 -5k is :-। please answer fast to get 12.0 points

a metalic wire of resistance r is cut into ten parts of equal length. they are then joined in parallal. what will be total resistance of this parallel combination.

Molarity of 29% w/w h2so4 solution whose density is 1.22 g ml-1 is

Motion and rest are relative terus a. true b. false c. none

3) When a body moves along a straight line, its motion is called ............. motion

Q1. If P, Q and R are quantities with different dimensions, state which of the following can never be meaningful ?1) (P+Q) R2) PQ+R3)Q/P+RA) (1) and (2)B) (2) and (3)C) (1) and (3)D) (1),(2) and (3)

Questions is in the attachment

Similarities of lunar and solar eclipse

6. Explain liquid pressure. On what factors doesit depend an how?

हवा हमारे शरीर पर दबाव डालती है लेकिन हम इसका अनुभव नहीं कर पाते हैं,क्यों

Universal law of gravitation formula. Best answer, brainliest. Second best will be liked.

The principle of regenerative cooling method is based (a) Adiabatic Expansion(b) Joule - Kevin on delivery(c) Constant Pressure(d) when boiling at low pressure.

Koi mere phle vale question ka ans do.plz

the electrostatic force of repulsion between two positively charged ions carrying equal charge is 7.4×10^-9N, when they are separated by a distance of 5×10^-10m . What is the value of charge ? How many electrons are missing from each ion?

A constant force of 5N acting on a particle and displace it from x=-5 cm to x=5 cm then calculate work.

A sphere of 1.0 m radius at 0 degree celcius is heated to 100 degree celcius and its radius is found to be 1.01 m .what is the coefficients of cubical expansion of the material of the sphere

How to balance NaOH +H2so4 -Na2so4+H2o

A light ray is passing through a convex lens having focal length of 15 cm. Ifthe object is at the centre of curvature(C7), can you say the object distanceand image distance? Why? AS,

If the r1 vector and r2 vector is position vector then displacement vector is

Two bodies A and B are connected by a string over a pulley and a disc slides over the string Then B+C cannot be treated as a system the reason is

А square surface of side meters isthe plne of the plane. A uniformFeld & also in the plane of thepaperis limited only to lowes halfof the square surface. The electricflux is SI units asociated with thesurface is

Hi dur123 pra45....,..,.,.,.,..,.,.,.,.,.,..,.,.,.,..,.,.,

A A light ray enters in a liquid at an angleof incidence 45 and it gets refracted on liquidangle retraction 30: Find the retroactiveIndex of the liquid? As: n=1-414

Electroplating is based on

A particle moves in a straight line with a uniform acceleration a. Initial velocity of the particle is zero. Find the average velocity of the particle in first 's' distance.Solution2Ssot late and tat&as 2812

The teachersaid to student wheybesentclassthis daysالحمد

What is nitrogen cycle

Varun apologised for his rudeness. He felt at peace with him

The Density Of A Substance ........................... With Change In Size a. Variesb. Remains The Same

Where is ashoka stumbh????

Although pinhole camera can produce good photo lens camera are widely used give two reason

The speed of light in a transparent medium is 0.6 times that of its speed in vacuum What is the refractive index of medium?

Air at atmospheric pressure 760mmHg is trapped in a container. When the piston of the container is pulled out slowly so that the volume is increased by 25%, the temperatureremaining constant, what will be the pressure of the air?

The resisting force to movement of an object is called

.A stone dropped from a certain height can reach the ground in 5 s. It is stopped after 3 seconds of its fall and then allowed to fallagain. Find the time taken by the stone to reach the ground for theremaining distance.A.2sB.4sC.6sD.8sE.10s

A cone made completely of metal therefore it is not hallow has a base of radius 14 cm and height of 7 cm we melt it and recast it into sphere what will be the radius of sphere

3. A force F = (3xN)i +(4N)ſ, with x in meter, acts on a particle, changing only the kinetic energy of the particle.How much work is done on the particle as it moves fromcoordinates (2 m, 3 m, 5 m) to (3 m, 0 m, 6 m)? Does thespeed of the particle increase, decrease, or remain thesame?

At stopping potential, the photoelectrons have (A) K.E. = 0(B) P.E. = 0(C) K.E. = P.E. (D) K.E. = maximum

Tuglay ang mga buso? . Paano nakilala ng Tuglay ang kaniyang pag-ibig? Paano sila nagkatu-luyan sa huli?

A wire of resistane R is cutinto five equal pieces- The pieces are connected inparallel Find theequivalent resistance of thecombination

Can we measure the velocity of athletes in the given figure? Why?

Mirror is "tu"6) The magnification produced by a mirror is +4What does it mean?