67486 + Interview Questions in Secondary School in Physics

1.	Answer pls ifificufjfjcjvjcjc
Answer» ANSWER: xigxgkxigdgisozzoszodzodozdzo Explanation: xhkxkgyfjstka SURPRISINGLY is so is so is SOPRO PLAYER in FF

1.

Answer pls ifificufjfjcjvjcjc

Answer»

ANSWER:

xigxgkxigdgisozzoszodzodozdzo

Explanation:

xhkxkgyfjstka SURPRISINGLY is so is so is SOPRO PLAYER in FF

Discussion

2.	In physics, electricity, copper, aluminium, iron, silver which is odd one out?
Answer» Answer: ELECTRICITY EXPLANATION: Because ALUMINIUM,iron,copper and silver are conducturs of electricity, but electricity is the one which is produced.

2.

In physics, electricity, copper, aluminium, iron, silver which is odd one out?

Answer»

Answer:

Because ALUMINIUM,iron,copper and silver are conducturs of electricity, but electricity is the one which is produced.

Discussion

3.	Difference between Real Image ang Virtual Image
Answer» ANSWER: PREFER from PICTURE...

3.

Difference between Real Image ang Virtual Image

Answer»

ANSWER:

4.	What is principal axis ?
Answer» $\huge\mathbb\red{❥Answer\:}$ An optical axis is a line along which there is some degree of rotational symmetry in an optical system such as a camera LENS, MICROSCOPE or TELESCOPIC SIGHT. The optical axis is an imaginary line that defines the path along which light propagates through the system, up to first APPROXIMATION.

What is principal axis ?

Answer»

$\huge\mathbb\red{❥Answer\:}$

An optical axis is a line along which there is some degree of rotational symmetry in an optical system such as a camera LENS, MICROSCOPE or TELESCOPIC SIGHT. The optical axis is an imaginary line that defines the path along which light propagates through the system, up to first APPROXIMATION.

Discussion

5.	Why does transfer of heat in fluids take place by convection?
Answer» Answer: Heat transfer in FLUIDS generally takes place via convection. Convection currents are set up in the FLUID because the hotter part of the fluid is not as dense as the cooler part, so there is an upward buoyant FORCE on the hotter fluid, making it RISE while the cooler, DENSER, fluid sinks Explanation: hope it helps

5.

Why does transfer of heat in fluids take place by convection?

Answer»

Answer:

Heat transfer in FLUIDS generally takes place via convection. Convection currents are set up in the FLUID because the hotter part of the fluid is not as dense as the cooler part, so there is an upward buoyant FORCE on the hotter fluid, making it RISE while the cooler, DENSER, fluid sinks

Explanation:

hope it helps

Discussion

6.	What is radius of curvature ?
Answer» $\huge\underline{\overline{\mid{\bold{\blue{\mathcal{ANSWER}}\mid}}}}$ In differential GEOMETRY, the radius of curvature, R, is the reciprocal of the curvature. For a curve, it EQUALS the radius of the circular ARC which best approximates the curve at that POINT. For SURFACES, the radius of curvature is the radius of a circle that best fits a normal section or combinations thereof.

6.

What is radius of curvature ?

Answer»

$\huge\underline{\overline{\mid{\bold{\blue{\mathcal{ANSWER}}\mid}}}}$

In differential GEOMETRY, the radius of curvature, R, is the reciprocal of the curvature. For a curve, it EQUALS the radius of the circular ARC which best approximates the curve at that POINT. For SURFACES, the radius of curvature is the radius of a circle that best fits a normal section or combinations thereof.

Discussion

7.	A body of mass 10kg is kept at rest. If 50N force is applied on it for 20s. What will be thework done?
Answer» this is the ANSWER for your QUESTION if you are having any DOUBT PLEASE ASK me

Discussion

8.	REDRAW & Label the following diagram.b) Define frequency of a sound waves . c) State the factors on which frequency depends upon
Answer» EXPLANATION: b. The total number of waves produced in one second is CALLED the FREQUENCY of sound eaves. c. The actual frequency is dependent upon the PROPERTIES of the material the object is made of this affect the speed of the wave and the length of the material this AFFECTS the wavelength of the waves.

8.

REDRAW & Label the following diagram.b) Define frequency of a sound waves . c) State the factors on which frequency depends upon

Answer»

EXPLANATION:

b. The total number of waves produced in one second is CALLED the FREQUENCY of sound eaves.

c. The actual frequency is dependent upon the PROPERTIES of the material the object is made of this affect the speed of the wave and the length of the material this AFFECTS the wavelength of the waves.

Discussion

9.	A boy of mass 50 Kg running at 5m/s jumps on to a 20 Kg trolley travelling in the same direction at 1.5m/s. Find their common velocity.
Answer» Answer: The COMMON velocity is 4m/s. Explanation: Using CONSERVATION of momentum MV + mv = (M+m)v' Where, M= MASS of the boy - 50 kb m= mass of the trolley - 20 kb V - velocity of the trolley- 1.5 m/s v' - common velocity- x (50+20) x= (50×5+20×1.5) x = 4m/s Answer HOPE IT HELPS YOU

9.

A boy of mass 50 Kg running at 5m/s jumps on to a 20 Kg trolley travelling in the same direction at 1.5m/s. Find their common velocity.

Answer»

Answer:

The COMMON velocity is 4m/s.

Explanation:

Using CONSERVATION of momentum

MV + mv = (M+m)v'

Where,

M= MASS of the boy - 50 kb

m= mass of the trolley - 20 kb

V - velocity of the trolley- 1.5 m/s

v' - common velocity- x

(50+20) x= (50×5+20×1.5)

x = 4m/s Answer

HOPE IT HELPS YOU

Discussion

10.	Dєƒíղҽ ԹհվՏíϲՏ....
Answer» Answer: $\Huge\rm{{\color{purple}{{\underline{คภ}}}}{\color{orchid}{{\underline{รฬ}}}}{\pink{{\underline{єг}}}}{\color{blue}{{\underline{}}}}{\color{lightpink}{:}}}$ Physics can, at base, be DEFINED as the science of MATTER, motion, and energy. Its laws are TYPICALLY expressed with ECONOMY and precision in the language of MATHEMATICS. _________ ❤ __________

10.

Dєƒíղҽ ԹհվՏíϲՏ....

Answer»

Answer:

$\Huge\rm{{\color{purple}{{\underline{คภ}}}}{\color{orchid}{{\underline{รฬ}}}}{\pink{{\underline{єг}}}}{\color{blue}{{\underline{}}}}{\color{lightpink}{:}}}$

Physics can, at base, be DEFINED as the science of MATTER, motion, and energy. Its laws are TYPICALLY expressed with ECONOMY and precision in the language of MATHEMATICS.

_ ❤ __

Discussion

11.	the force of gravitation between two bodies is F. in what situation will the force between the two become 4 F.
Answer» Answer: 1) if the the mass of any of the BODY increased by 4 times 2) if the distance between the BODIES DECREASED to half of present

11.

the force of gravitation between two bodies is F. in what situation will the force between the two become 4 F.

Answer»

Answer:

1) if the the mass of any of the BODY increased by 4 times

2) if the distance between the BODIES DECREASED to half of present

Discussion

12.	Elaborate a situation where work done can be zero
Answer» EXPLANATION: So for EXAMPLE, if one would have a massive weight set of gym equipment and you are trying to LIFT it, but you are not able to do the same, here the work DONE by you would be zero because even though the effort or FORCE is applied by you exists, there is no change in the location of the weight set

12.

Elaborate a situation where work done can be zero

Answer»

EXPLANATION:

So for EXAMPLE, if one would have a massive weight set of gym equipment and you are trying to LIFT it, but you are not able to do the same, here the work DONE by you would be zero because even though the effort or FORCE is applied by you exists, there is no change in the location of the weight set

Discussion

13.	A force of 2i+3j+k displaces a body through 5j work done is
Answer» Answer: sir more than a OPTIONS for the VOTES and click to brainlist GIVE votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist click to brainlist give votes and click to brainlist

13.

A force of 2i+3j+k displaces a body through 5j work done is

Answer»

Answer:

sir more than a OPTIONS for the VOTES and click to brainlist GIVE votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist
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click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist give votes and click to brainlist
click to brainlist give votes and click to brainlist

Discussion

14.	Aball is thrown from the ground at an angle of 45degree from the horizontal rising to maximum height of 50m find initial velocity
Answer» GIVEN : Angle of PROJECTION = 45° Maximum height = 50m To find : The initial velocity of the ball Solution : Maximum height attained by a projectile is given by, $\boxed{ \bf H = \dfrac{u^2 sin^2 \theta}{2g}}$ Where, u DENOTES initial velocity θ denotes angle of projection g denotes accerlation due to gravity By substituting all the given VALUES in the formula, $\dashrightarrow\sf H = \dfrac{u^2 sin^2 \theta}{2g}$ $\dashrightarrow\sf 50= \dfrac{u^2 sin^2 45 \degree}{2(10)}$ $\dashrightarrow\sf 50= \dfrac{u^2 \bigg( \dfrac{1}{ \sqrt{2}} \bigg) ^{2} }{20}$ $\dashrightarrow\sf 50 \times 20= u^2 \bigg( \dfrac{1}{ \sqrt{2}} \bigg) ^{2}$ $\dashrightarrow\sf 1000= \dfrac{ {u}^{2} }{ 2}$ $\dashrightarrow\sf 2000= {u}^{2}$ $\dashrightarrow\sf u = \sqrt{2000}$ $\dashrightarrow \boxed{\sf u = 44.7 \: {ms}^{ - 1} }$ Thus, the initial velocity of the ball is 44.7 m/s.

14.

Aball is thrown from the ground at an angle of 45degree from the horizontal rising to maximum height of 50m find initial velocity

Answer»

GIVEN :

Angle of PROJECTION = 45°

Maximum height = 50m

To find :

The initial velocity of the ball

Solution :

Maximum height attained by a projectile is given by,

$\boxed{ \bf H = \dfrac{u^2 sin^2 \theta}{2g}}$

Where,

u DENOTES initial velocity
θ denotes angle of projection
g denotes accerlation due to gravity

By substituting all the given VALUES in the formula,

$\dashrightarrow\sf H = \dfrac{u^2 sin^2 \theta}{2g}$

$\dashrightarrow\sf 50= \dfrac{u^2 sin^2 45 \degree}{2(10)}$

$\dashrightarrow\sf 50= \dfrac{u^2 \bigg( \dfrac{1}{ \sqrt{2}} \bigg) ^{2} }{20}$

$\dashrightarrow\sf 50 \times 20= u^2 \bigg( \dfrac{1}{ \sqrt{2}} \bigg) ^{2}$

$\dashrightarrow\sf 1000= \dfrac{ {u}^{2} }{ 2}$

$\dashrightarrow\sf 2000= {u}^{2}$

$\dashrightarrow\sf u = \sqrt{2000}$

$\dashrightarrow \boxed{\sf u = 44.7 \: {ms}^{ - 1} }$

Thus, the initial velocity of the ball is 44.7 m/s.

Discussion

15.	Uniform motion graph for 7th classif u answer this I will mark u as brainliest for sureplsss its urgent.
Answer» Answer: DEFINITION: This type of motion is defined as the motion of an OBJECT in which the object TRAVELS in a straight line and its VELOCITY remains constant along that line as it covers equal distances in equal intervals of time, irrespective of the duration of the time. Non Uniform Motion: Definition: This type of motion is defined as the motion of an object in which the object travels with varied speed and it does not COVER same distance in equal time intervals, irrespective of the time interval duration.

15.

Uniform motion graph for 7th classif u answer this I will mark u as brainliest for sureplsss its urgent.

Answer»

Answer:

DEFINITION: This type of motion is defined as the motion of an OBJECT in which the object TRAVELS in a straight line and its VELOCITY remains constant along that line as it covers equal distances in equal intervals of time, irrespective of the duration of the time.

Non Uniform Motion:

Definition: This type of motion is defined as the motion of an object in which the object travels with varied speed and it does not COVER same distance in equal time intervals, irrespective of the time interval duration.

Discussion

16.	What is short pitch winding
Answer» Answer: we can define a Short Pitch Coil as the coil having the coil span (Coil Span is defined as the space angle between the two coil sides of a coil) less than 180 degree. A short PITCHED coil is ALSO known as Chorded Coil.

16.

What is short pitch winding

Answer»

Answer:

we can define a Short Pitch Coil as the coil having the coil span (Coil Span is defined as the space angle between the two coil sides of a coil) less than 180 degree. A short PITCHED coil is ALSO known as Chorded Coil.

Discussion

17.	Out of the following which one is not a possible energy for a photon to be emitted byhydrogen atom according to Bohr's atomicmodel?Explain?(1) 0.65 eV(2) 1.9eV(3) 11.1eV(4) all
Answer» ANSWER: (3) 11.1eV is CARROT ANSWERS

17.

Out of the following which one is not a possible energy for a photon to be emitted byhydrogen atom according to Bohr's atomicmodel?Explain?(1) 0.65 eV(2) 1.9eV(3) 11.1eV(4) all

Answer»

ANSWER:

(3) 11.1eV is CARROT ANSWERS

Discussion

18.	How s=vit+½at² peove this in detail.
Answer» ANSWER: Average VELOCITY =initial velocity +final velocity / 2 that is, average velocity = u + v /2 also, distance travelled =average velocity time so, s=(u+v) /2 xt (0) from the first equation of motion we have, v=utat. Putting this value of v in equation (1), we have : s={(u+u+at) t 1/2 s=((2u + at) xt]/2 s=(2ut +at^) /2 s=ut +1/2 ata. HoPe* iT HeLpS Explanation: *Pleas* *MARK* me as brainliest and also follow me

18.

How s=vit+½at² peove this in detail.

Answer»

ANSWER:

Average VELOCITY =initial velocity +final velocity / 2

that is, average velocity = u + v /2

also, distance travelled =average velocity time

so, s=(u+v) /2 xt

(0)

from the first equation of motion we have, v=utat. Putting this value of v in equation (1), we have :

s={(u+u+at) *t 1/2

s=((2u + at) xt]/2 s=(2ut +at^) /2 s=ut +1/2 ata.

HoPe iT HeLpS

Explanation:

Pleas MARK me as brainliest and also follow me

Discussion

19.	Explain work energy theorm?
Answer» Answer: The work-energy THEOREM STATES that the NET work done by the FORCES on an object equals the CHANGE in its kinetic energy.

19.

Explain work energy theorm?

Answer»

Answer:

The work-energy THEOREM STATES that the NET work done by the FORCES on an object equals the CHANGE in its kinetic energy.

Discussion

20.	(b) Distinguish between longitudinal and transverse wavesthis question carries 3 mark can u please answer who ever answers first I'll follow them and mark as brainlist
Answer» Answer: TRANSVERSE waves are always characterized by PARTICLE motion being perpendicular to WAVE motion. A LONGITUDINAL wave is a wave in which particles of the medium move in a direction PARALLEL to the direction that the wave moves.

20.

(b) Distinguish between longitudinal and transverse wavesthis question carries 3 mark can u please answer who ever answers first I'll follow them and mark as brainlist

Answer»

Answer:

TRANSVERSE waves are always characterized by PARTICLE motion being perpendicular to WAVE motion. A LONGITUDINAL wave is a wave in which particles of the medium move in a direction PARALLEL to the direction that the wave moves.

Discussion

21.	On what factors does the resistance of a conductor depend?
Answer» The resistance of a conductor depends on the cross sectional area of the conductor, the LENGTH of the conductor, and its resistivity. It is important to NOTE that ELECTRICAL conductivity and resistivity are inversely proportional, meaning that the more conductive something is the LESS RESISTIVE it is. I hope it help you...

21.

On what factors does the resistance of a conductor depend?

Answer»

The resistance of a conductor depends on the cross sectional area of the conductor, the LENGTH of the conductor, and its resistivity. It is important to NOTE that ELECTRICAL conductivity and resistivity are inversely proportional, meaning that the more conductive something is the LESS RESISTIVE it is.

I hope it help you...

Discussion

22.	Please send answer fast..
Answer» ANSWER: clckfkckclcockckckcm m m KC

22.

Please send answer fast..

Answer»

ANSWER:

clckfkckclcockckckcm m m KC

Discussion

23.	Find angle of banking to negosiate the safe turn. what is the need of banking if road?
Answer» Answer: Banking of roads refers to when there is an angle between the surface of the road with the horizontal, that is, the road is inclined. ... To OBTAIN the EXPRESSION for the maximum speed with which a VEHICLE can negotiate a curve on a banked road with angle θ, let US DRAW a free body diagram.

23.

Find angle of banking to negosiate the safe turn. what is the need of banking if road?

Answer»

Answer:

Banking of roads refers to when there is an angle between the surface of the road with the horizontal, that is, the road is inclined. ... To OBTAIN the EXPRESSION for the maximum speed with which a VEHICLE can negotiate a curve on a banked road with angle θ, let US DRAW a free body diagram.

Discussion

24.	Derive the expression for work done by a variable force
Answer» EXPLANATION: this can be RIGHT ANSWER of your QUESTION

24.

Derive the expression for work done by a variable force

Answer»

EXPLANATION:

this can be RIGHT ANSWER of your QUESTION

Discussion

25.	The earth and the moon are attracted to each other by gravitational force.Does the earth attract the moon with a force that is greater or smaller or the same as the force with which the moon attracts the earth? Why?
Answer» Answer: both ATTRACT each other with same gravitational force Explanation: it's because of NEWTON's third LAW

25.

The earth and the moon are attracted to each other by gravitational force.Does the earth attract the moon with a force that is greater or smaller or the same as the force with which the moon attracts the earth? Why?

Answer»

Answer:

both ATTRACT each other with same gravitational force

Explanation:

it's because of NEWTON's third LAW

Discussion

26.	What are mechanical waves? Give example.
Answer» Answer: A mechanical WAVE is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While WAVES can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position. Explanation: There are three types of mechanical waves: transverse waves, longitudinal waves, and surface waves, etc. Some of the most common EXAMPLES of mechanical waves are WATER waves, sound waves, and seismic waves.

26.

What are mechanical waves? Give example.

Answer»

Answer:

A mechanical WAVE is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While WAVES can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position.

Explanation:

There are three types of mechanical waves: transverse waves, longitudinal waves, and surface waves, etc. Some of the most common EXAMPLES of mechanical waves are WATER waves, sound waves, and seismic waves.

Discussion

27.	Two bodies of masses 3 kg and 12 kg are placed at a distance 12 m. A third body of mass 0.5 kg is to be placed at such a point that the force acting on this body is zero. Find the position of that point.
Answer» Explanation: 50 1 DOGE point 50 point Doge to MAIN BHI Tumhen dunga

27.

Two bodies of masses 3 kg and 12 kg are placed at a distance 12 m. A third body of mass 0.5 kg is to be placed at such a point that the force acting on this body is zero. Find the position of that point.

Answer»

Explanation:

50 1 DOGE point 50 point Doge to MAIN BHI Tumhen dunga

Discussion

28.	One od of a 10 montilever rod is clamped rigidly. When a 0.5 kg load is suspendedthe other end it is depressed by 0.5 cm. Calculate the depression at 40 cm distancefrom the red and when a 3 kg load is suspended at the free end.(Ans: 1.04 x 103 m)
Answer» EXPLANATION: MADAM FOLLOW to KARO

28.

One od of a 10 montilever rod is clamped rigidly. When a 0.5 kg load is suspendedthe other end it is depressed by 0.5 cm. Calculate the depression at 40 cm distancefrom the red and when a 3 kg load is suspended at the free end.(Ans: 1.04 x 103 m)

Answer»

EXPLANATION:

MADAM FOLLOW to KARO

Discussion

29.	Assertion (A). The product of mus and velocity by a moving body by itsReason (R). Ir no external force acting on the system, then their linear momentumremains conserved
Answer» ANSWER: it is TRUE. MOMENTUM doesn't CHANGE

29.

Assertion (A). The product of mus and velocity by a moving body by itsReason (R). Ir no external force acting on the system, then their linear momentumremains conserved

Answer»

ANSWER:

it is TRUE. MOMENTUM doesn't CHANGE

Discussion

30.	What is lateral inversion ?
Answer» $\huge\mathbb\red{❥Answer\:}$ Lateral inversion is a PHENOMENON in which left appears to be RIGHT and vice versa. It is DUE to direction that light follows when it strikes a reflecting surface, generally a mirror.

30.

What is lateral inversion ?

Answer»

$\huge\mathbb\red{❥Answer\:}$

Lateral inversion is a PHENOMENON in which left appears to be RIGHT and vice versa. It is DUE to direction that light follows when it strikes a reflecting surface, generally a mirror.

Discussion

31.	Vibhav shopan se kad ka paravartan tatha pargaman aavsyak siddhant sahit samchhiye
Answer» ANSWER: what are you SAYING I can't UNDERSTAND

31.

Vibhav shopan se kad ka paravartan tatha pargaman aavsyak siddhant sahit samchhiye

Answer»

ANSWER:

what are you SAYING I can't UNDERSTAND

Discussion

32.	Ek Ganesh fire in the air at a distance of 60 metre from a person he hears the sound of the gun after 2 second what is the speed of sound
Answer» Answer: A gun is FIRED in the air at a distance of 660 m from a person. he HEARS the sound of the gun after 2 seconds. what is the SPEED of the sound?

32.

Ek Ganesh fire in the air at a distance of 60 metre from a person he hears the sound of the gun after 2 second what is the speed of sound

Answer»

Answer:

A gun is FIRED in the air at a distance of 660 m from a person. he HEARS the sound of the gun after 2 seconds. what is the SPEED of the sound?

Discussion

33.	A block of mass 2 kg dropped from a height of 2.1 m , falls on a spring of length 10 cm placed vertically on the ground ( as shown in the figure above ) . Find the maximum compression of the spring if the spring constant , k , of the spring is 3.28 × 10⁴ N/m .[take g = 10 m/s²]#CorrectAnswersOnly
Answer» ANSWER: your answer REFER to the ATTACHMENT

33.

A block of mass 2 kg dropped from a height of 2.1 m , falls on a spring of length 10 cm placed vertically on the ground ( as shown in the figure above ) . Find the maximum compression of the spring if the spring constant , k , of the spring is 3.28 × 10⁴ N/m .[take g = 10 m/s²]#CorrectAnswersOnly

Answer»

ANSWER:

your answer REFER to the ATTACHMENT

Discussion

34.	How work energy theorem evolved and work and kinetic energy is defined ??
Answer» The principle of work and kinetic ENERGY (also known as the work-energy theorem) states that the work done by the sum of all FORCES ACTING on a particle equals the CHANGE in the kinetic energy of the particle. The kinetic energy of the BLOCK increases as a result by the amount of work.

Discussion

35.	The energy equation is given by
Answer» ANSWER: PLEASE GIVE the EQUATION

35.

The energy equation is given by

Answer»

ANSWER:

PLEASE GIVE the EQUATION

Discussion

36.	Give two consequence of air pollution
Answer» EXPLANATION: it causes BREATHING problems in humans it is ALSO RESPONSIBLE for acid rain

36.

Give two consequence of air pollution

Answer»

EXPLANATION:

it causes BREATHING problems in humans

it is ALSO RESPONSIBLE for acid rain

Discussion

37.	Early morning water in the swimming pool is warmer that the atmospheric temperature .give reason physics
Answer» ANSWER: STILL I dint READ LIKE this question ok

37.

Early morning water in the swimming pool is warmer that the atmospheric temperature .give reason physics

Answer»

ANSWER:

STILL I dint READ LIKE this question ok

Discussion

38.	What is virtual image ?
Answer» $\huge\mathbb\red{❥Answer\:}$ In optics, an image is defined as the collection of FOCUS POINTS of light rays coming from an object. A REAL image is the collection of focus points ACTUALLY made by converging rays, while a virtual image is the collection of focus points made by extensions of diverging rays.

38.

What is virtual image ?

Answer»

$\huge\mathbb\red{❥Answer\:}$

In optics, an image is defined as the collection of FOCUS POINTS of light rays coming from an object. A REAL image is the collection of focus points ACTUALLY made by converging rays, while a virtual image is the collection of focus points made by extensions of diverging rays.

Discussion

39.	ANSWER THE QUESTION IN THE ATTACHMENT ☞NO SPAM❌❌☞NO COPIED ANSWER ❌❌☞BETTER IF EXPLAINED TOO✅
Answer» *Here* is *your* *ANSWER... I think* *the* *picture* *quality* is *LITTLE* *bit* bad..XD *but* *KAAM* *chala* *lena* *Hope* it *helps* *you❤️*❤️❤️❤️❤️

39.

ANSWER THE QUESTION IN THE ATTACHMENT ☞NO SPAM❌❌☞NO COPIED ANSWER ❌❌☞BETTER IF EXPLAINED TOO✅

Answer»

Here is your ANSWER...

I think the picture quality is LITTLE bit bad..XD but KAAM chala lena

Hope it helps you❤️❤️❤️❤️❤️

Discussion

40.	A car accelerates from rest at a constant rate Afor some time after which it refords at a constantrate B to contant rest . If the time elapsed istseconds, calcalate the maximum velocity reachedand the total distance travelled in terms of A, B,T
Answer» ANSWER: ohhrealy H sg s as asg agsa bsg Explanation:

40.

A car accelerates from rest at a constant rate Afor some time after which it refords at a constantrate B to contant rest . If the time elapsed istseconds, calcalate the maximum velocity reachedand the total distance travelled in terms of A, B,T

Answer»

ANSWER:

ohhrealy H sg s as asg agsa bsg

Explanation:

Discussion

41.	What is real image ?
Answer» $\huge\color{orange}\star\:\tt\pink{Answer}\:\star$ A real IMAGE is the COLLECTION of FOCUS points ACTUALLY made by converging rays, while a virtual image is the collection of focus points made by extensions of DIVERGING rays. A real image occurs where rays converge, whereas a virtual image occurs where rays only appear to diverge.

41.

What is real image ?

Answer»

$\huge\color{orange}\star\:\tt\pink{Answer}\:\star$

A real IMAGE is the COLLECTION of FOCUS points ACTUALLY made by converging rays, while a virtual image is the collection of focus points made by extensions of DIVERGING rays. A real image occurs where rays converge, whereas a virtual image occurs where rays only appear to diverge.

Discussion

42.	(ঘ) উদ্দীপক অনুসারে নিক্ষেপণ কোণের সর্বনিম্ন কি পরিবর্তনকরলে প্রাসটি AB দেয়ালে বাধা পাবে? গাণিতিকবিশ্লেষণসহ মতামত দাও।৪
Answer» which LANGUAGE U USED I don't UNDERSTAND DEAR

42.

(ঘ) উদ্দীপক অনুসারে নিক্ষেপণ কোণের সর্বনিম্ন কি পরিবর্তনকরলে প্রাসটি AB দেয়ালে বাধা পাবে? গাণিতিকবিশ্লেষণসহ মতামত দাও।৪

Answer»

which LANGUAGE U USED I don't UNDERSTAND DEAR

Discussion

43.	Obtain an expression for speed with which a vehical can safely negosiate a flat curved road ?
Answer» Answer: (ii) The normal reaction (R) of the GROUND on the car which is equal and opposite to the weight of the car, i.e., R = mg. Then CENTRIPETAL FORCE must be provided by the frictional force (F) between the tyres of the car and the ground. The car should NEGOTIATE the FLAT circular path not more than that given by equ.

43.

Obtain an expression for speed with which a vehical can safely negosiate a flat curved road ?

Answer»

Answer:

(ii) The normal reaction (R) of the GROUND on the car which is equal and opposite to the weight of the car, i.e., R = mg. Then CENTRIPETAL FORCE must be provided by the frictional force (F) between the tyres of the car and the ground. The car should NEGOTIATE the FLAT circular path not more than that given by equ.

Discussion

44.	I'm in class 8 but the quiz master has told me to make the quiz of class 9how is it possible?!!!!!! please guys fgive me help me out give me some mcq based maths questions of class 9
Answer» Answer: The following number of goals were scored by a TEAM in a series of 10 matches 2, 3, 4, 5, 0, 1, 3, 3, 4, 3. Find the mean, median and mode of these scores. Solution: NCERT Solutions for Class 9 Maths CHAPTER 14 Statistics EX 14.4 img 1 (iii) Mode Arranging the GIVEN data in ascending order, we have 0, 1,2, 3, 3, 3, 3, 4, 4, 5. Here, 3 occurs most frequently (4 times) ∴ Mode = 3

44.

I'm in class 8 but the quiz master has told me to make the quiz of class 9how is it possible?!!!!!! please guys fgive me help me out give me some mcq based maths questions of class 9

Answer»

Answer:

The following number of goals were scored by a TEAM in a series of 10 matches

2, 3, 4, 5, 0, 1, 3, 3, 4, 3.

Find the mean, median and mode of these scores.

Solution:

NCERT Solutions for Class 9 Maths CHAPTER 14 Statistics EX 14.4 img 1

(iii) Mode Arranging the GIVEN data in ascending order, we have 0, 1,2, 3, 3, 3, 3, 4, 4, 5.

Here, 3 occurs most frequently (4 times)

∴ Mode = 3

Discussion

45.	Assertion (A): Work done is the dot product of two vectors (displacement vectorand force vector)Reason (R): The product (Scalar product) of two vectors is a vector quantity.
Answer» Answer: Both A and R is true but R is not the CORRECT explanation of A . Explanation: HOPE it helps you PLS mark me as brainliest

45.

Assertion (A): Work done is the dot product of two vectors (displacement vectorand force vector)Reason (R): The product (Scalar product) of two vectors is a vector quantity.

Answer»

Answer: Both A and R is true but R is not the CORRECT explanation of A .

Explanation: HOPE it helps you PLS mark me as brainliest

Discussion

46.	The isotopes of hydrogen areul H2 H3
Answer» Answer: There are three isotopes of the element hydrogen: hydrogen, deuterium, and tritium. ... Hydrogen has no neutron, deuterium has one, and tritium has TWO neutrons. The isotopes of hydrogen have, RESPECTIVELY, mass numbers of one, two, and three. Their nuclear symbols are therefore 1H, 2H, and 3H.

46.

The isotopes of hydrogen areul H2 H3

Answer»

Answer:

There are three isotopes of the element hydrogen: hydrogen, deuterium, and tritium. ... Hydrogen has no neutron, deuterium has one, and tritium has TWO neutrons. The isotopes of hydrogen have, RESPECTIVELY, mass numbers of one, two, and three. Their nuclear symbols are therefore 1H, 2H, and 3H.

Discussion

47.	The parallel light rays do not remain parallel after reflection. It is a/an _______ reflection.
Answer» The answer is "a diffused reflection "

Discussion

48.	The SI unit of area is hectereTr
Answer» Answer: Hectare, unit of area in the metric system EQUAL to 100 ares, or 10,000 SQUARE metres, and the equivalent of 2.471 acres in the British Imperial System and the United States Customary measure. The term is derived from the Latin area and from hect, an irregular CONTRACTION of the GREEK word for hundred.

48.

The SI unit of area is hectereTr

Answer»

Answer:

Hectare, unit of area in the metric system EQUAL to 100 ares, or 10,000 SQUARE metres, and the equivalent of 2.471 acres in the British Imperial System and the United States Customary measure. The term is derived from the Latin area and from hect, an irregular CONTRACTION of the GREEK word for hundred.

Discussion

49.	12 gram oxygen ko mol mein parivartan Karen
Answer» Answer: 0.375 MOLES Explanation: mass of OXYGEN gas (O2) = 16 * 2 = 32 grams therefore 18 grams = 1 mole therefore 12 grams = 12 / 32 = 0.375 moles

49.

12 gram oxygen ko mol mein parivartan Karen

Answer»

Answer:

0.375 MOLES

Explanation:

mass of OXYGEN gas (O2) = 16 * 2 = 32 grams

therefore 18 grams = 1 mole

therefore 12 grams = 12 / 32

= 0.375 moles

Discussion

50.	A body is projected with a velocity of 30 m/sec at an angle of 60┬░ with horizontal . Find the horizontal range *
Answer» HOPE it HELPS U Plz MARK my answer as BRAINLIST

50.

A body is projected with a velocity of 30 m/sec at an angle of 60┬░ with horizontal . Find the horizontal range *

Answer»

HOPE it HELPS U

Plz MARK my answer as BRAINLIST

Discussion

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