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Yogita Ingle 4 years, 8 months ago

Kepler’s 1st Law: Law of Orbits

Statement: - The orbit of every planet is an ellipse around the sun with sun at one of the two foci of ellipse.

Kepler’s 2nd law: Law of Areas

Statement:-The line that joins a planet to the sun sweeps out equal areas in equal intervals of time.

Kepler’s 3rdLaw: Law of periods

Statement: -

  • According to this law the square of time period of a planet is ∝ to the cube of the semi-major axisof its orbit.
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Ram Pal 4 years, 9 months ago

Ram Chand शुक्ल का जन्म
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Yogita Ingle 3 years, 8 months ago

Basis of Difference

Source Documents

Vouchers

Meaning

It refers to the documents in writing, containing the details of events or transactions.

When source document is considered as evidence of an event or transaction, then it is called voucher.

Purpose

It is used for preparing accounting vouchers.

It is used for analysing the transactions.

Recording

It acts as a basis for preparing accounting voucher that helps in recording.

It acts as a basis for recording transactions.

Preparation

It is prepared at the time when an event or a transaction occurs.

It can be prepared either when an event or a transaction occurs, or later on.

Legality/Validity

It can be used as evidence in the court of law.

It can be used for assessing the authentication of transactions.

Prepared By

It is prepared by the persons who are directly involved in the transactions, or who are authorised to prepare or approve these documents.

It is prepared by the authorised persons or by the accountants.

Examples

Cash memo, invoice, and pay-in-slip, etc.

Cash memo, invoice, pay-in-slip (if used as evidence), debit note, credit note, cash vouchers, transfer vouchers, etc.

 

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Aash Saifi 4 years, 4 months ago

According to physics, motion is a phenomenon in which an object changes its position over a time.
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Anchal Rawat 4 years, 6 months ago

Mahesh is a man

Iram Husain 4 years, 9 months ago

Mahesh was gafur's bull.

Amayra Siddiqui 4 years, 10 months ago

Mahesh was a cow make
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Aryan Sagar 4 years, 8 months ago

The physical quantities which show both magnitude as well as direction is called as vector quantities.
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Ajay Gupta 4 years, 7 months ago

Hiii
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Ritik Singh 4 years, 1 month ago

Hemoglobin

Anchal Rawat 4 years, 6 months ago

Himoglobin
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Sumit Chauhan 2 years, 3 months ago

रेखांकित प्रश्न उत्तर

Sarika Negi 4 years, 2 months ago

Hai
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Anuj Nath 4 years, 11 months ago

Chapter 11.1 Q 11
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Satyam Rajput 4 years, 11 months ago

Mercy

Anil Chaudhary 4 years, 11 months ago

What
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Pankhudi S 4 years, 4 months ago

Hindi gadya ki rachna evam lekhak
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Sanjay Dafane 4 years, 11 months ago

Cell

Yogita Ingle 4 years, 11 months ago

  • Robert Hooke was the scientist who gave Hooke’s law.
  • Hooke’s law states that within the elastic limit, stress developed is directly proportional to the strain produced in a body.
  • Consider a scenario where we apply external force to the body. As a result stress develops in the body due to this stress there will be a strain produced in the body which implies that there will be some deformation in the body.
  • Because of stress, strain is produced.
  • According to Hooke’s law, if strain increases the stress will increase and vice-versa.
  • The Hooke’s law is applicable to all elastic substances.
  • It does not apply to plastic deformation.
  • Mathematically :
  • stress ∝ strain
  • stress = k × strain
  • Where k is the proportionality constant and is known as modulus of elasticity.

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