67486 + Interview Questions in Secondary School in Physics Page 60 InterviewSolution

2951.	prove that the sum of angle of scattering and angle of recoil make 90 degrees in an elastic collision in 2 dimensions
Answer» Answer: Elastic scattering leads to the loss of kinetic energy (slowing down) of NEUTRONS by billiard ball-type collisions. This process leads to the generation of highly energetic RECOIL nuclei, which lose energy by excitation and ionization of the surrounding material. The recoil process is governed by the LAWS of conservation of momentum and energy. Up to half of the kinetic energy of a neutron is lost on COLLISION with a hydrogen nucleus, since the masses are almost equal. THUS, materials with high hydrogen content, such as water or paraffin wax, are effective for neutron shielding.

2951.

prove that the sum of angle of scattering and angle of recoil make 90 degrees in an elastic collision in 2 dimensions

Answer»

Answer:

Elastic scattering leads to the loss of kinetic energy (slowing down) of NEUTRONS by billiard ball-type collisions. This process leads to the generation of highly energetic RECOIL nuclei, which lose energy by excitation and ionization of the surrounding material. The recoil process is governed by the LAWS of conservation of momentum and energy. Up to half of the kinetic energy of a neutron is lost on COLLISION with a hydrogen nucleus, since the masses are almost equal. THUS, materials with high hydrogen content, such as water or paraffin wax, are effective for neutron shielding.

2994.	Assertion (A): When a current I flow through a resistor R, heat produced. Reason (R): on flowing current in conductor magnetic field is developed around the conductor. 1.(A) is incorrect and (R) is correct 2.(A) is correct and (R) is incorrect. 3.Both (A) and (R) are correct but (R) is the correct explanation of (A). 4.Both (A) and (R) are correct but (R) is not the correct explanation of (A).
Answer» 4.Both (A) and (R) are CORRECT but (R) is not the correct EXPLANATION of (A).

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prove that the sum of angle of scattering and angle of recoil make 90 degrees in an elastic collision in 2 dimensions

Suppose that two objects attracteach other with a gravatationalforce of 16 units. If the distancebetween the two objects isdoubled what is the new forceof attraction between two objects?​

A man ran 2.0 kilometre towards east, thenmaking a perpendicular left turn he ran 500m. and then he ran 4.0km. after making perpendicular right turn. Calculate his total displacement​

The voltage across a lamp is V = (6.0 + - 0.1) volt and the current passing through it I = (4+ - 0.2) ampere. Find the power consumed by the electric lamp. Given Power = V*I

Explanation:

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State the meaning of uniform circular motion ?2) Draw the velocity time graph for a uniformly accelerated object. Using velocity timegraph, derive V2 - U² = 2as.3) A motor boat starting from rest on a lake accelerates in a straight line at a constant​

What are harm/w effect of noise pollution​

vander wall gas equation of real gas state (p+a/v^2) (v-b)= RT ,where p= pressure , v= volume, t= temperature​

6. Draw the ray diagram and write the characteristics of the image when an object is placbetween infinity and the pole of a convex mirror.​

Give geometric representation of 3x -12 = 0 in one and two variables​

How noise differ from musical sound?​

MUSIC is the art of arranging and combining sounds in ORDER to create a harmonious MELODY while noise is an unwanted sound that is usually very LOUD and meaningless.

Explain electric potential due to pointcharge​

Give me correct diffination of virtual or real object.​

Derive drift velocity's dimensional formula.​

What would be the values of V /I ratios when the potential difference is 0.8 V, 1.2 V and1.6 V respectively? What conclusion do you draw from these values?where v=1.6and i=0.5 plz ans with steps

एक्सप्लेन इलेक्ट्रिक पोटेंशियल ड्यू टो प्वाइंट चार्ज​

The equivalent resistance between point a and b is​

If the magnification value is negative, then the image isA) EnlargedB) diminishedC) Real and inverted D) Virtual and Erect​

Explain electric potential due to point charge.​

QUESTION IN ATTACHEMENT(KINEMATICS GRAPH)

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5. A man is facing East. He turns 45° in the clockwise direction and then another 90° in thesame direction and then 180° in the anticlockwise direction. Which direction is he facingnow?(1) North(2) South-East(3) North-East(4) South​

Can anyone solve this question PLZZZZZ. I will mark him/her as brainlist​

If p unit of charge moves per sec in resistance of 3-ohm, 8 ohm, and 10 ohms,individually, then in which more heat will be developed? (a)3 (b)8 (c)10 (d)Same in all

The focal length of a spherical mirror is 6 cm, then its radius of curvature isA) 3 cm B) 6 cm C) 12 cm D) 24 cm​

The ewuivalent resistance of two resistances are 12 ohm when in series and 5/3 ohm when in parallel combination. Calculate the resistances...Pls tell...​

Why the colour of sky looks blue in daytime?​

2. When a light ray falls normally on a spherical mirror, then the reflected ray willA) Pass parallel to principal axis B) pass through Principal FocusC) Pass between C and FD) retraces its path​

For a given pain of media, the ratio sin i to sin r is___.

BeA man runs towards the plane merror at 2 ms. The relative speed his image with image respect to him will be(W &msa) 2 mg() 4mgal(d) loms​

1.1.VTwo blocks are connected by a string, as shown infigure. They are released from rest. The coefficientof kinetic friction between the upper block and thesurface is 0.5. Assume that the pulley is massless andfrictionless. Their common speed after they moveda distance 5m will be :-​

The change in velocity may be due to the change in​

X39. Figure below shows the electricfield lines for two point chargesseparated by a small distance.0aniO(a) Determine the ratio q1/q2(b) What are the signs of qı and q2?​

10g lime stone when reacts completely with dilute HCL it produces CO2 gas. If the reaction happens at 27 degree Celsius , 780 mm pressure then calculate the volume of that gas ? [ Ca = 40 , C = 12 , O = 16 ] Please tell...​

How can fish servive in salt water​

Atliche has to put up a fenceLoreund, hen suct anda gandeI lenght 10 m and beadth oohall sides of the hectangularGolden and comes clothesbutonage band and awelrity dla​

The measure of motion of a body depends on both ____________and its _______________.

FORCE, Mass

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Do it fast it will follow you​

All formulas of position time graph ​

How the base of transistor of ​

How much work is done in moving a charge of 12 C across two points having a potential difference 2 V?

How does the sound produced by a vibrating object in a medium reach your ear​

When an object VIBRATES, it PASSES on the vibrations to the surrounding medium (AIR) which then TRAVELS through the material medium by vibrating its particles about their mean positions.

What is the drift velocity

a converging lens of focal length 15 CM placed at a distance of 20 cm from a screen how far the lens should be placed so form a real image on the screen​

To accelerate the motion of an object, an __________________ force is required. Answer 1st and I will mark brainliest.!

Which of the following is not the unit of magnetic field intensity? 1.Tesla 2.Weber/m2 3.NA–1m–1 4.Newton

Calculate the amount of work done to carry charge of 4C from a point at 100 V to a point at 120 volt

A number of forces acting on a body change the velocity of the body. It indicates that the forces are ______________.

UNBALANCED.

Plz explain in detail step by step ​

Hi dude please explain the question 23

Suppose that two objects attracteach other with a gravatationalforce of 16 units. If the distancebetween the two objects isdoubled what is the new forceof attraction between two objects?

A man ran 2.0 kilometre towards east, thenmaking a perpendicular left turn he ran 500m. and then he ran 4.0km. after making perpendicular right turn. Calculate his total displacement

State the meaning of uniform circular motion ?2) Draw the velocity time graph for a uniformly accelerated object. Using velocity timegraph, derive V2 - U² = 2as.3) A motor boat starting from rest on a lake accelerates in a straight line at a constant

What are harm/w effect of noise pollution

vander wall gas equation of real gas state (p+a/v^2) (v-b)= RT ,where p= pressure , v= volume, t= temperature

6. Draw the ray diagram and write the characteristics of the image when an object is placbetween infinity and the pole of a convex mirror.

Give geometric representation of 3x -12 = 0 in one and two variables

How noise differ from musical sound?

Explain electric potential due to pointcharge

Give me correct diffination of virtual or real object.

Derive drift velocity's dimensional formula.

एक्सप्लेन इलेक्ट्रिक पोटेंशियल ड्यू टो प्वाइंट चार्ज

The equivalent resistance between point a and b is

If the magnification value is negative, then the image isA) EnlargedB) diminishedC) Real and inverted D) Virtual and Erect

Explain electric potential due to point charge.

5. A man is facing East. He turns 45° in the clockwise direction and then another 90° in thesame direction and then 180° in the anticlockwise direction. Which direction is he facingnow?(1) North(2) South-East(3) North-East(4) South

Can anyone solve this question PLZZZZZ. I will mark him/her as brainlist

The focal length of a spherical mirror is 6 cm, then its radius of curvature isA) 3 cm B) 6 cm C) 12 cm D) 24 cm

The ewuivalent resistance of two resistances are 12 ohm when in series and 5/3 ohm when in parallel combination. Calculate the resistances...Pls tell...

Why the colour of sky looks blue in daytime?

2. When a light ray falls normally on a spherical mirror, then the reflected ray willA) Pass parallel to principal axis B) pass through Principal FocusC) Pass between C and FD) retraces its path

BeA man runs towards the plane merror at 2 ms. The relative speed his image with image respect to him will be(W &msa) 2 mg() 4mgal(d) loms

1.1.VTwo blocks are connected by a string, as shown infigure. They are released from rest. The coefficientof kinetic friction between the upper block and thesurface is 0.5. Assume that the pulley is massless andfrictionless. Their common speed after they moveda distance 5m will be :-

The change in velocity may be due to the change in

X39. Figure below shows the electricfield lines for two point chargesseparated by a small distance.0aniO(a) Determine the ratio q1/q2(b) What are the signs of qı and q2?

10g lime stone when reacts completely with dilute HCL it produces CO2 gas. If the reaction happens at 27 degree Celsius , 780 mm pressure then calculate the volume of that gas ? [ Ca = 40 , C = 12 , O = 16 ] Please tell...

How can fish servive in salt water

Atliche has to put up a fenceLoreund, hen suct anda gandeI lenght 10 m and beadth oohall sides of the hectangularGolden and comes clothesbutonage band and awelrity dla

The measure of motion of a body depends on both and its ___.

Do it fast it will follow you

All formulas of position time graph

How the base of transistor of

How does the sound produced by a vibrating object in a medium reach your ear

a converging lens of focal length 15 CM placed at a distance of 20 cm from a screen how far the lens should be placed so form a real image on the screen

$\text{[math]}$ UNBALANCED.

Plz explain in detail step by step