Assertion :Mass, length and time are fundamental physical quantities.

Reason : They are independent of each other.

1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false

Concept Questions :-

Errors
High Yielding Test Series + Question Bank - NEET 2020

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Assertion :Density is a derived physical quantity.

Reason : Density cannot be derived from the fundamental physical quantities.

1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false

Concept Questions :-

Errors
High Yielding Test Series + Question Bank - NEET 2020

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Assertion :Now a days a standard metre is defined as in terms of the wavelength of light.

Reason : Light has no relation with length.

1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Assertion :Radar is used to detect an aeroplane in the sky

Reason : Radar works on the principle of reflection of waves.

1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Assertion :Surface tension and surface energy have the same dimensions.

Reason : Because both have the same S.I. unit

1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false

Concept Questions :-

Dimensions
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Assertion : In $y=A\mathrm{sin}\left(\omega \text{\hspace{0.17em}}t-kx\right),$ $\left(\omega t-kx\right)$ is dimensionless.

Reason : Because dimension of $\omega =\left[{M}^{0}{L}^{0}T\right].$

1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false

Concept Questions :-

Dimensions
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Assertion : Radian is the unit of plane angle.

Reason : One radian is the angle subtended at the centre of a circle by an arc equal in length to the radius of the circle.

1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false

Concept Questions :-

Dimensions
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Choose any one of the following four responses :

(1) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(2) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(3) If assertion is true but reason is false.

(4) If the assertion and reason both are false

Assertion : A.U. is much bigger than Å.

Reason : A.U. stands for astronomical unit and Å stands from Angstrom.

Concept Questions :-

Dimensions
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Choose any one of the following four responses :

(1) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(2) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(3) If assertion is true but reason is false.

(4) If the assertion and reason both are false.

Assertion :When we change the unit of measurement of a quantity, its numerical value changes.

Reason : Smaller the unit of measurement smaller is its numerical value.

High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

Choose any one of the following four responses :

(1) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(2) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(3) If assertion is true but reason is false.

(4) If the assertion and reason both are false.

Assertion : Dimensional constants are the quantities whose value are constant.

Reason : Dimensional constants are dimensionless.