67486 + Interview Questions in Secondary School in Physics

1.	If an apple is thrown vertical upward and horizontal force acts 30N what is the maximum displacing vertebrate force or maximum basalt force? answer fast and correct please
Answer» ong>EXPLANATION: uv jvkvkvo J j HK o v idj. jcjcjcjjvh h h hv h hcux,jwpdm m nxn n

1.

If an apple is thrown vertical upward and horizontal force acts 30N what is the maximum displacing vertebrate force or maximum basalt force? answer fast and correct please

Answer»

ong>EXPLANATION:

uv jvkvkvo J j HK o v idj. jcjcjcjjvh h h hv h hcux,jwpdm m nxn n

Discussion

2.	Mr. Abdulla wishes to move a heavy block of mass 10 kg by means of an engine through a string suchthat reading of the spring balance is 5 kg.The acceleration of the block will be :37°smooth10 kg
Answer» ONG>ANSWER: ...............................MMM

2.

Mr. Abdulla wishes to move a heavy block of mass 10 kg by means of an engine through a string suchthat reading of the spring balance is 5 kg.The acceleration of the block will be :37°smooth10 kg

Answer» ONG>ANSWER:

...............................MMM

Discussion

3.	a man travelled a distance distance of 1.5 metre towards the east then 2.0 metre towards south and finally 4.5 towards east in 4 second calculate the total distance travelled and final displacement
Answer» ONG>ANSWER: −0.2222222222 Explanation: −0.2222222222

3.

a man travelled a distance distance of 1.5 metre towards the east then 2.0 metre towards south and finally 4.5 towards east in 4 second calculate the total distance travelled and final displacement

Answer» ONG>ANSWER:

−0.2222222222

Explanation:

−0.2222222222

Discussion

4.	Position of object to get a smaller image due to concave mirror is...
Answer» ong>Answer: Image result for position of object to get a SMALLER image due to concave mirror is For concave mirrors, when the object is outside C, the image will be between C and F and the image will be inverted and diminished (smaller than the object). For concave mirrors, when the object is between C and F, the image will be beyond C and will be ENLARGED and inverted. Explanation:

4.

Position of object to get a smaller image due to concave mirror is...

Answer»

ong>Answer:

Image result for position of object to get a SMALLER image due to concave mirror is

For concave mirrors, when the object is outside C, the image will be between C and F and the image will be inverted and diminished (smaller than the object). For concave mirrors, when the object is between C and F, the image will be beyond C and will be ENLARGED and inverted.

Explanation:

Discussion

5.	The position coordinates of a particle moving in x-y plane changes from (1 m, 1 m) to (3 m, –5 m). Its displacement vector is represented as
Answer» $\underline{\textsf{Given:}}$ $\textsf{Points are (m,m) and (3m,-5m)}$ $\underline{\textsf{To find:}}$ $\textsf{The displacement vector}$ $\underline{\textsf{Solution:}}$ $\textsf{Let the given points be A(m,m) and B(3m,-5m)}$ $\textsf{Then,}$ $\mathsf{\overrightarrow{OA}=m\overrightarrow{i}+m\overrightarrow{j}}$ $\mathsf{\overrightarrow{OB}=3m\overrightarrow{i}-5m\overrightarrow{j}}$ $\textsf{Now,}$ $\textsf{Displacement vector}$ $\mathsf{\overrightarrow{AB}=\overrightarrow{OB}-\overrightarrow{OA}}$ $\mathsf{\overrightarrow{AB}=(3m\overrightarrow{i}-5m\overrightarrow{j})-(m\overrightarrow{i}+m\overrightarrow{j})}$ $\mathsf{\overrightarrow{AB}=2m\overrightarrow{i}-6m\overrightarrow{j}}$ $\underline{\textsf{Answer:}}$ $\textsf{Displacement vector is}$ $\mathsf{2m\overrightarrow{i}-6m\overrightarrow{j}}$

5.

The position coordinates of a particle moving in x-y plane changes from (1 m, 1 m) to (3 m, –5 m). Its displacement vector is represented as

Answer»

$\underline{\textsf{Given:}}$

$\textsf{Points are (m,m) and (3m,-5m)}$

$\underline{\textsf{To find:}}$

$\textsf{The displacement vector}$

$\underline{\textsf{Solution:}}$

$\textsf{Let the given points be A(m,m) and B(3m,-5m)}$

$\textsf{Then,}$

$\mathsf{\overrightarrow{OA}=m\overrightarrow{i}+m\overrightarrow{j}}$

$\mathsf{\overrightarrow{OB}=3m\overrightarrow{i}-5m\overrightarrow{j}}$

$\textsf{Now,}$

$\textsf{Displacement vector}$

$\mathsf{\overrightarrow{AB}=\overrightarrow{OB}-\overrightarrow{OA}}$

$\mathsf{\overrightarrow{AB}=(3m\overrightarrow{i}-5m\overrightarrow{j})-(m\overrightarrow{i}+m\overrightarrow{j})}$

$\mathsf{\overrightarrow{AB}=2m\overrightarrow{i}-6m\overrightarrow{j}}$

$\underline{\textsf{Answer:}}$

$\textsf{Displacement vector is}$

$\mathsf{2m\overrightarrow{i}-6m\overrightarrow{j}}$

Discussion

6.	Please give the answer of all the numbers. If you know any one answer than please give that one only.
Answer» ONG>Answer: Explanation: The power of an AIR conditioner is greater than a fan because air conditioner consume more energy than a fan.The air conditioners.The air conditioner consume LOT of electricity energy and therefore the electricity BILLS are very expensive.

6.

Please give the answer of all the numbers. If you know any one answer than please give that one only.

Answer» ONG>Answer:

Explanation:

The power of an AIR conditioner is greater than a fan because air conditioner consume more energy than a fan.The air conditioners.The air conditioner consume LOT of electricity energy and therefore the electricity BILLS are very expensive.

Discussion

7.	A 5000kg truck has 400000J of kinetic energy. How fast is it moving
Answer» ong>Answer: GIVEN : Mass of truck = 5000 Kg Kinetic energy of truck = 400000 J To Find :- Velocity of the truck Solution :- By using kinetic energy formula ★ Kinetic energy = 1/2 mv² ⇒ 400000 = 1/2 × 5000 × v² ⇒ 400000 = 2500v² ⇒ v² = 400000 / 2500 ⇒ v² = 160 ⇒ v = √160 ⇒ v ≈ 12.7 m/s Truck is moving with a velocity of 12.7 m/s Explanation:

7.

A 5000kg truck has 400000J of kinetic energy. How fast is it moving

Answer»

ong>Answer:

GIVEN :

Mass of truck = 5000 Kg

Kinetic energy of truck = 400000 J

To Find :-

Velocity of the truck

Solution :-

By using kinetic energy formula

★ Kinetic energy = 1/2 mv²

⇒ 400000 = 1/2 × 5000 × v²

⇒ 400000 = 2500v²

⇒ v² = 400000 / 2500

⇒ v² = 160

⇒ v = √160

⇒ v ≈ 12.7 m/s

Truck is moving with a velocity of 12.7 m/s

Explanation:

Discussion

8.	Out of the following set of forces, the resultant of which cannot be zero? 10, 10, 10 10, 10, 20 20, 20, 10 10, 20, 35
Answer» ong>ANSWER: here is U R ANSWERS...................

8.

Out of the following set of forces, the resultant of which cannot be zero? 10, 10, 10 10, 10, 20 20, 20, 10 10, 20, 35

Answer»

ong>ANSWER:

here is U R ANSWERS...................

Discussion

9.	The angle between vectors (ĀXB) and (BxA)is-
Answer» ong>ANSWER: the ANGLE is AB sintheta for A×B and BA sintheta

9.

The angle between vectors (ĀXB) and (BxA)is-

Answer»

ong>ANSWER:

the ANGLE is AB sintheta for A×B

and BA sintheta

Discussion

10.	A convex lens has its object and image distances equal say x ,the focal length is equal to
Answer» /P> HOPE it HELPS you....

10.

A convex lens has its object and image distances equal say x ,the focal length is equal to

Answer»

/P>

HOPE it HELPS you....

Discussion

11.	1. The limit of Balmer series is 36468. The wavelength of first series of this elements will be (A) 65638(B) 36468(C) 72008(D) 10008
Answer» ONG>Answer: for balmer SERIES,n1=2 ,n2=3,4,....... wavelength of balmer series are 1/wavelength =R[1/2^2-1/n^2] for series limit n2=infinity and wave LENGTH for first line n2=3 1/wavelength =R[1/2^2-1/3^2] 1/wavelength = 4/36468×5/36 wavelength = 1312848/20 wavelength of first series of this element is 65638 so ans is 65638

11.

1. The limit of Balmer series is 36468. The wavelength of first series of this elements will be (A) 65638(B) 36468(C) 72008(D) 10008

Answer» ONG>Answer:

for balmer SERIES,n1=2 ,n2=3,4,.......

wavelength of balmer series are

1/wavelength =R[1/2^2-1/n^2]

for series limit n2=infinity and wave LENGTH

for first line n2=3

1/wavelength =R[1/2^2-1/3^2]

1/wavelength = 4/36468×5/36

wavelength = 1312848/20

wavelength of first series of this element is 65638

so ans is 65638

Discussion

12.	State two disadvantages of wiring a household circuit in series??????
Answer» ong>ANSWER: Disadvantages of series circuit s for domestic WIRING: In series circuit, the appliances do not get the same voltage as that of the power supply line. In the series connection of ELECTRICAL appliance, the overall resistance of the circuit increases too much DUE to which the current from the power supply is low. Explanation: if u like the ans plz mark me brainlist and follow me

12.

State two disadvantages of wiring a household circuit in series??????

Answer»

ong>ANSWER:

Disadvantages of series circuit s for domestic WIRING:

In series circuit, the appliances do not get the same voltage as that of the power supply line. In the series connection of ELECTRICAL appliance, the overall resistance of the circuit increases too much DUE to which the current from the power supply is low.

Explanation:

if u like the ans plz mark me brainlist and follow me

Discussion

13.	a magnetic field dirrected in north direction acts on electron moving in East direction the magnetic force on the eleteon will
Answer» ONG>Answer: A magnetic field directed in north direction ACTS on an ELECTRON moving in EAST direction. The magnetic force on the electron will actImmersive Reader (a) vertically upwards.

Discussion

14.	A tennis ball is traveling at 50 m/s and has a kinetic energy of 75 J. Calculate the mass of the tennis ball.
Answer» ONG>ANSWER: m = 0.06kg Explanation: KINETIC Energy (KE) = ½mv² KE = 75 J v = 50 m/s m = ? ➞ 75 = ½ × m × (50)² ➞ 75 = ½ × m × 50 × 50 ➞ m = 75 × 2/50 × 50 ➞ m = 150/2500 ➞ m = 0.06kg

14.

A tennis ball is traveling at 50 m/s and has a kinetic energy of 75 J. Calculate the mass of the tennis ball.

Answer» ONG>ANSWER:

m = 0.06kg

Explanation:

KINETIC Energy (KE) = ½mv²

KE = 75 J

v = 50 m/s

m = ?

➞ 75 = ½ × m × (50)²

➞ 75 = ½ × m × 50 × 50

➞ m = 75 × 2/50 × 50

➞ m = 150/2500

➞ m = 0.06kg

Discussion

15.	Draw ray diagrams for convex lens, object placed at different positions.( At infinity, beyond the centre of curvature, at centre of curvature, at focus point and between focus point and optic centre ) no irrevalent answers are accepted
Answer» ONG>Answer: When the OBJECT is placed between centre of curvature and principal focus of CONCAVE mirror, a real image is FORMED beyond the centre of curvature (C).

Discussion

16.	Draw a labbled diagram showing photosynthesis
Answer» ong>Answer: PHOTOSYNTHESIS is the process through which PLANTS prepare there food✳️

16.

Draw a labbled diagram showing photosynthesis

Answer»

ong>Answer:

PHOTOSYNTHESIS is the process through which PLANTS prepare there food✳️

Discussion

17.	T0 is time period of oscillation of the needle in uniform horizontal magnetic field (B h) of earth. If another magnetic field is applied perpendicular to B, such that the needle deflects by theta for its equilibrium. Now period of oscillation of needle is T. The relation between Tand T0 id
Answer» ER: HIND and EXPLATIONS are GIVEN below Explanation:

17.

T0 is time period of oscillation of the needle in uniform horizontal magnetic field (B h) of earth. If another magnetic field is applied perpendicular to B, such that the needle deflects by theta for its equilibrium. Now period of oscillation of needle is T. The relation between Tand T0 id

Answer» ER:

HIND and EXPLATIONS are GIVEN below

Explanation:

Discussion

18.	Define Kirchhoff 's law ...????
Answer» ong>Explanation: TWO laws concerning electric networks in which steady CURRENTS are flowing. The first law states that the algebraic sum of the currents in all the conductors that meet in a point is ZERO. The second law states that the algebraic sum of the PRODUCTS of current and resistance in each part of any closed path in a network is equal to the algebraic sum of the electromotive forces in the path.

18.

Define Kirchhoff 's law ...????

Answer»

ong>Explanation:

TWO laws concerning electric networks in which steady CURRENTS are flowing. The first law states that the algebraic sum of the currents in all the conductors that meet in a point is ZERO. The second law states that the algebraic sum of the PRODUCTS of current and resistance in each part of any closed path in a network is equal to the algebraic sum of the electromotive forces in the path.

Discussion

19.	Answer plz......??????????
Answer» ONG>Answer: umm Explanation: IDK sry I didn't LEARN this

19.

Answer plz......??????????

Answer» ONG>Answer:

umm

Explanation:

IDK sry I didn't LEARN this

Discussion

20.	A 70kg man runs at a pace of 4 m/s and a 50g meteor travels at 2 km/s. Which has the most kinetic energy?.
Answer» ong>Answer: Kinetic energy is the energy STORED in moving objects. Stationary objects have no kinetic energy. Ek = 0.5 × m × v2 Examples: 1. A car with a MASS of 700 kg is moving with a speed of 20m/s. Calculate the kinetic energy of the car. 2. A cyclist and BIKE have a TOTAL mass of 100 kg and a speed of 15 m/s. Calculate the kinetic energy. 3. A tennis BALL is traveling at 50 m/s and has a kinetic energy of 75 J. Calculate the mass of the tennis ball.

20.

A 70kg man runs at a pace of 4 m/s and a 50g meteor travels at 2 km/s. Which has the most kinetic energy?.

Answer»

ong>Answer:

Kinetic energy is the energy STORED in moving objects.

Stationary objects have no kinetic energy.

Ek = 0.5 × m × v2

Examples:

1. A car with a MASS of 700 kg is moving with a speed of 20m/s. Calculate the kinetic energy of the car.

2. A cyclist and BIKE have a TOTAL mass of 100 kg and a speed of 15 m/s. Calculate the kinetic energy.

3. A tennis BALL is traveling at 50 m/s and has a kinetic energy of 75 J. Calculate the mass of the tennis ball.

Discussion

21.	State the factor on which the acceleration produce in a body by a force given magnitude depends
Answer» ong>Answer: Yes! Here is your answer! Explanation: The acceleration of an object depends directly UPON the NET force ACTING upon the object, and INVERSELY upon the MASS of the object.

21.

State the factor on which the acceleration produce in a body by a force given magnitude depends

Answer»

ong>Answer:

Yes! Here is your answer!

Explanation:

The acceleration of an object depends directly UPON the NET force ACTING upon the object, and INVERSELY upon the MASS of the object.

Discussion

22.	Subatomic particles
Answer» ONG>Answer: the atomic number of an ELEMENT is the number of PROTONS in it's nucleus

Discussion

23.	Parallel beam of light rays after reflection from a concave mirror pass...
Answer» ONG>Answer: Image result for parallel beam of light rays after reflection from a concave mirror pass... All the light rays which are parallel to the principal axis of a concave mirror, CONVERGE at the the principal FOCUS (F) after reflection from the mirror. SINCE a concave mirror CONVERGES a parallel beam of light rays, it is also called a converging mirror Explanation:

23.

Parallel beam of light rays after reflection from a concave mirror pass...

Answer» ONG>Answer:

Image result for parallel beam of light rays after reflection from a concave mirror pass...

All the light rays which are parallel to the principal axis of a concave mirror, CONVERGE at the the principal FOCUS (F) after reflection from the mirror. SINCE a concave mirror CONVERGES a parallel beam of light rays, it is also called a converging mirror

Explanation:

Discussion

24.	a block of 2 kg is thrown up an inclined plane of inclination 45 with velocity v1 . the coefficient of friction is 1/2 it returna to the bottom with velocity v2 . the value of v2/v1 is ?
Answer» ONG>Answer: PLEASE FOLLOW me Explanation: please follow me

24.

a block of 2 kg is thrown up an inclined plane of inclination 45 with velocity v1 . the coefficient of friction is 1/2 it returna to the bottom with velocity v2 . the value of v2/v1 is ?

Answer» ONG>Answer:

PLEASE FOLLOW me

Explanation:

please follow me

Discussion

25.	5) a object is at a distance of 10 cm from a mirror then the distance betweenmirror andimage
Answer» m as this if I'm PLANE MIRROR

Discussion

26.	Caluculate the value of k^.i^
Answer» > ki is the inhibitions CONSTANT EXPRESSED in the same units as I , which you entered into the column titles . *VMEX* is *the* *maximum* enzymes velocity , in the ABSENCE of inhipitor , expressed in the same unit**s as y.

26.

Caluculate the value of k^.i^

Answer»

>

ki is the inhibitions CONSTANT EXPRESSED in the same units as I , which you entered into the column titles . VMEX is the maximum enzymes velocity , in the ABSENCE of inhipitor , expressed in the same units as y.

Discussion

27.	Percentage error in the measurement of height and radius of a cylinder are X and Y respectively respectively find the percentage error in the measurement height order does need more attention
Answer» ONG>ANSWER: height is answer Explanation: RESPECTIVELY height of cylinder are Xneeds order of Percentage MEASUREMENT of RADIUS This is MY Answer

27.

Percentage error in the measurement of height and radius of a cylinder are X and Y respectively respectively find the percentage error in the measurement height order does need more attention

Answer» ONG>ANSWER:

height is answer

Explanation:

RESPECTIVELY height of cylinder are Xneeds

order of Percentage MEASUREMENT of RADIUS

This is MY Answer

Discussion

28.	Which of the following is a scalar quantity ? (1) current(2) velocity(3) force(4) acceleration
Answer» RONG> (1) *current* is scalar quality PLEASE MARK** me as BRAINLEST and follow me please

Discussion

29.	A convex lens of power +6 d is placed in conyact with a concave lens of power -4 d
Answer» ONG>ANSWER: ABCDEFGHIJKLMNOPQRSTUVWXYZ Explanation: abcdefghijklmnopqrstuvwxyz

29.

A convex lens of power +6 d is placed in conyact with a concave lens of power -4 d

Answer» ONG>ANSWER:

ABCDEFGHIJKLMNOPQRSTUVWXYZ

Explanation:

abcdefghijklmnopqrstuvwxyz

Discussion

30.	Diagram of triangular law of vectors
Answer» it is helpful mark MEEE as BRAINIEST

30.

Diagram of triangular law of vectors

Answer»

it is helpful

mark MEEE as BRAINIEST

Discussion

31.	It is also called as isometic strength
Answer» ong>Answer: yes U KNOW I am a good GIRL hahahhh

31.

It is also called as isometic strength

Answer»

ong>Answer:

yes U KNOW I am a good GIRL hahahhh

Discussion

32.	Calculate the electruc current through bc
Answer» ONG>ANSWER: don't KNOW................

Discussion

33.	When a body is projected into air with certain initial velocity making an angle with the horizontal, it will travel in a parabolic path. a) What are the vertical and horizontal components of velocity? [1] b) with a diagram derive an expression for: i. Maximum height ii. Time of flight [4] c) A ball is dropped through the window of a train travelling with high velocity, to a man standing near the track. The ball………… i. Falls down vertically ii. Moves straight horizontally iii. Follows an elliptical path iv. Follows a parabolic path
Answer» ONG>ANSWER: we don't KNOW this answer

Discussion

34.	Only mithua gives answer
Answer» ONG>ANSWER: THANKS for the points MARK me in brain list

Discussion

35.	If v=t+1 find the displacement from 0 to 2 seconds
Answer» /H2> EXPLANATION: time = 2 sec velocity = 2+1 = 3 m/s displacement = time × velocity = 2 × 3 = 6 m

35.

If v=t+1 find the displacement from 0 to 2 seconds

Answer»

/H2>

EXPLANATION:

time = 2 sec

velocity = 2+1 = 3 m/s

displacement = time × velocity

= 2 × 3

= 6 m

Discussion

36.	4. Along which a force acts is called a. line of action of forceC. axis of rotationb. line of acting torqued. moment arm
Answer» ONG>Answer: I THINK your answer is axis of rotation.. I am not SURE.... plz FOLLOW me and mark me as BRAINLIEST.....

36.

4. Along which a force acts is called a. line of action of forceC. axis of rotationb. line of acting torqued. moment arm

Answer» ONG>Answer:

I THINK your answer is axis of rotation..

I am not SURE....

plz FOLLOW me and mark me as BRAINLIEST.....

Discussion

37.	a wooden block is sliddind down an inclined plane at constant speed . the magnitude of the friction force betwwn the block and plain is
Answer» ong>EXPLANATION: The maximum FORCE of static friction between two SURFACES is roughly proportional to the MAGNITUDE of the force pressing the two surfaces TOGETHER. ... The magnitude of the force of kinetic friction acting on an object is fk = μkN, where μk is the coefficient of kinetic friction.

37.

a wooden block is sliddind down an inclined plane at constant speed . the magnitude of the friction force betwwn the block and plain is

Answer»

ong>EXPLANATION:

The maximum FORCE of static friction between two SURFACES is roughly proportional to the MAGNITUDE of the force pressing the two surfaces TOGETHER. ... The magnitude of the force of kinetic friction acting on an object is fk = μkN, where μk is the coefficient of kinetic friction.

Discussion

38.	10. A body is in limiting equilibrium on a rough plane inclined at 30 with the horizontal. When theinclination is increased to 45', the body slides downwith acceleration. Find this acceleration.Take 8 - 9.8 msAns. 2.93 mthe fa
Answer» ONG>EXPLANATION: Now mgsin(15+30)=ma gsin45 ∘ =a a=gsin45 ∘ a=G× 2 1 a= 2 g m/s 2

38.

10. A body is in limiting equilibrium on a rough plane inclined at 30 with the horizontal. When theinclination is increased to 45', the body slides downwith acceleration. Find this acceleration.Take 8 - 9.8 msAns. 2.93 mthe fa

Answer» ONG>EXPLANATION:

Now

mgsin(15+30)=ma

gsin45

∘

=a

a=gsin45

∘

a=G×

2

1

a=

2

g

m/s

2

Discussion

39.	The relative density of a liquid is 0.8g, its density is ______ kg/m ^3
Answer» ong>Explanation: 800 kg/m³ relative density is density of object/ density of water at 4°C THEREFORE x/1000 = 0.8 x= 800 Hope it HELPS, MARK as BRAINLIEST

39.

The relative density of a liquid is 0.8g, its density is ______ kg/m ^3

Answer»

ong>Explanation:

800 kg/m³

relative density is density of object/ density of water at 4°C

THEREFORE x/1000 = 0.8

x= 800

Hope it HELPS, MARK as BRAINLIEST

Discussion

40.	The diagram of all forces acting on a object at a particular instant is free body diagram it is true or false
Answer» ONG>EXPLANATION: txtjlxtuldyipf7tttzultzkutsyildyipdyipsitpstups6ipspi6sitpsyidlyidliydlyidl

Discussion

41.	12 volt battery is applied across 6 ohm resistance to have a flow of steady current what must be the required potential difference across the same resistance to have a Steady Current of 1 ampere
Answer» ong>ANSWER: ANS is 6V because V=IR =1 (6) = 6V

41.

12 volt battery is applied across 6 ohm resistance to have a flow of steady current what must be the required potential difference across the same resistance to have a Steady Current of 1 ampere

Answer»

ong>ANSWER:

ANS is 6V

because

V=IR

=1 (6)

= 6V

Discussion

42.	Is there a possibility to make a time portal or a inter dimensional portal if a Black Hole and white hole collides?
Answer» ntists have come up with this THEORY but it isn't universally accepted so we can't REALLY say anything for sure.

Discussion

43.	The mass of a body on the earth is 15 kg. What will be its weight on the surface of moon.(g = 10 m/s 2 )
Answer» Given:- MASS of body ,m = 15kg Acceleration due to gravity ,G =10m/s² To Find:- weight of body on the moon (Wm) Solution:- As we know that → Weight = mass× acceleration due to gravity Firstly we calculate the weight of body on the EARTH's surface → We = m×g Substitute the VALUE we get → We = 15×10 → We = 150N ∴The weight of the body on the earth's surface is 150Newton. Now we know that the acceleration due to gravity on the moon's surface is equal to 1/6 acceleration due to gravity on Earth's Surface. Acceleration due to gravity on moon = 10×1/6= 10/6m/s² → Wm = m×g → Wm = 15×10/6 → Wm = 5 ×5 → Wm = 25N ∴ The weight of body on the moon surface is 25 Newton.

43.

The mass of a body on the earth is 15 kg. What will be its weight on the surface of moon.(g = 10 m/s 2 )

Answer»

Given:-

MASS of body ,m = 15kg

Acceleration due to gravity ,G =10m/s²

To Find:-

weight of body on the moon (Wm)

Solution:-

As we know that

→ Weight = mass× acceleration due to gravity

Firstly we calculate the weight of body on the EARTH's surface

→ We = m×g

Substitute the VALUE we get

→ We = 15×10

→ We = 150N

∴The weight of the body on the earth's surface is 150Newton.

Now we know that the acceleration due to gravity on the moon's surface is equal to 1/6 acceleration due to gravity on Earth's Surface.

Acceleration due to gravity on moon = 10×1/6= 10/6m/s²

→ Wm = m×g

→ Wm = 15×10/6

→ Wm = 5 ×5

→ Wm = 25N

∴ The weight of body on the moon surface is 25 Newton.

Discussion

44.	Give 2 practical applications of reflection of sound
Answer» ong>ANSWER: ECO Sonar in submarine

44.

Give 2 practical applications of reflection of sound

Answer»

ong>ANSWER:

ECO
Sonar in submarine

Discussion

45.	If a vector v cap cap + 2 j cap - 2 k cap is perpendicular to 3 ICAP + 2 j cap + 2 k cap
Answer» ong>ANSWER: on, they are not PERPENDICULAR each other Explanation: because of icap X jcap=k cap jcap x k cap= i cap k cap x i cap =J cap

45.

If a vector v cap cap + 2 j cap - 2 k cap is perpendicular to 3 ICAP + 2 j cap + 2 k cap

Answer»

ong>ANSWER:

on, they are not PERPENDICULAR each other

Explanation:

because of

icap X jcap=k cap

jcap x k cap= i cap

k cap x i cap =J cap

Discussion

46.	Find the magnitude of 6i+7j+ 3k
Answer» ong>ANSWER: Magnitude of a Vector. The magnitude of the vector v=6I+2J+3k. FIGURE 1: The magnitude of the vector v = 6i + 2j + 3k. The magnitude of the ... Missing: 7j+ ‎\| Must include: 7j+

46.

Find the magnitude of 6i+7j+ 3k

Answer»

ong>ANSWER:

Magnitude of a Vector. The magnitude of the vector v=6I+2J+3k. FIGURE 1: The magnitude of the vector v = 6i + 2j + 3k. The magnitude of the ...

Missing: 7j+ ‎| Must include: 7j+

Discussion

47.	1. The actual length covered by the body is called_______
Answer» ONG>Answer: Here is the required answer Explanation: DISTANCE is the actual length COVERED by the body. Please make this answer as brainliest answer

47.

1. The actual length covered by the body is called_______

Answer» ONG>Answer:

Here is the required answer

Explanation:

DISTANCE is the actual length COVERED by the body.

Please make this answer as brainliest answer

Discussion

48.	What's the important topics of thermal properties of matter?
Answer» ong>Answer: related to Thermal properties of MATTER like ideal gas equation, thermal expansion (linear, area and volume), heat capacity, specific heat capacity, calorimeter, fusion, normal BOILING POINT, sublimation, three modes of heat TRANSFER (CONDUCTION, convection, radiation). Explanation: please mark me as brainliest and follow me.

48.

What's the important topics of thermal properties of matter?

Answer»

ong>Answer:

related to Thermal properties of MATTER like ideal gas equation, thermal expansion (linear, area and volume), heat capacity, specific heat capacity, calorimeter, fusion, normal BOILING POINT, sublimation, three modes of heat TRANSFER (CONDUCTION, convection, radiation).

Explanation:

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Discussion

49.	If length time and energy arefundamental units then thedimension of mass will be
Answer» ong>Answer: fundamentals HD the MAN who had to go Explanation: back3u737eheyy Oldham ATHLETIC club was with the man in the man of the man in his CIRCLES

49.

If length time and energy arefundamental units then thedimension of mass will be

Answer»

ong>Answer:

fundamentals HD the MAN who had to go

Explanation:

back3u737eheyy Oldham ATHLETIC club was with the man in the man of the man in his CIRCLES

Discussion

50.	Diffrential equations
Answer» In mathematics, a differential EQUATION is an equation that relates one or more functions and their DERIVATIVES. In applications, the functions generally represent physical QUANTITIES, the derivatives represent their RATES of change, and the differential equation defines a relationship between the TWO

50.

Diffrential equations

Answer»

In mathematics, a differential EQUATION is an equation that relates one or more functions and their DERIVATIVES. In applications, the functions generally represent physical QUANTITIES, the derivatives represent their RATES of change, and the differential equation defines a relationship between the TWO

Discussion

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please mark me as brainliest and follow me.

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