The correct option is A Scalar ϕ =B⃗.A⃗. In this formula A⃗ is a area vector. ...

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Standard XII

Physics

Addition and Subtraction in Unit Vector Notation

Surface area ...

Question

Surface area is

Scalar

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Vector

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Neither scalar nor vector

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Both scalar and vector

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Solution

The correct option is A
Scalar

$ϕ = \to B . \to A$ . In this formula $\to A$ is a area vector.

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Similar questions

Q. Which of the following algebraic operations with scalar and vector physical quantities are meaningful.

(i) adding any two vectors
(ii) adding a scalar to a vector of the same dimensions
(iii) multiplying any vector by any scalar
(iv) multiplying any two scalars
(v) adding any two scalars
(vi) adding a component of a vector to the same vector.

State with reasons, whether the following algebraic operations with scalar and vector physical quantities are meaningful:

(a) adding any two scalars, (b) adding a scalar to a vector of the same dimensions, (c) multiplying any vector by any scalar, (d) multiplying any two scalars, (e) adding any two vectors, (f) adding a component of a vector to the same vector.

Q. State whether True or False :
Scalar and Vector, both obey law of vector algebra.

Define Scalar and vector quantity

Q. What are scalar and vector quantities?

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Surface area is

The correct option is A Scalar ϕ=→B.→A. In this formula →A is a area vector.

The correct option is A
Scalar

$ϕ = \to B . \to A$ . In this formula $\to A$ is a area vector.