Physics

1 Wb/m² equal to

Options

(a) 10⁴ G (b) 10² G (c) 10⁻² G (d) 10⁻⁴ G

Correct Answer:

10⁴ G

Explanation:

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Parsec is the unit of

Options

(a) time (b) distance (c) frequency (d) angular acceleration

Correct Answer:

distance

Explanation:

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Lumen is the unit of

Options

(a) illuminating power (b) luminous flux (c) luminous intensity (d) none of these

Correct Answer:

luminous flux

Explanation:

No explanation available. Be the first to write the […]

Unit of reduction factor is

Options

(a) ampere (b) ohm (c) tesla (d) weber

Correct Answer:

ampere

Explanation:

Reduction factor K = i/tan θ .·. i = K tanθ The unit of current […]

SI unit of permittivity is

Options

(a) C²m²N² (b) C²m⁻²N⁻¹ (c) C²m²N⁻¹ (d) C⁻¹m²N²

Correct Answer:

C²m⁻²N⁻¹

Explanation:

Coloumb force is F = (1/4πε₀) (q₁q₂/r²) Substituting the units of all, we get N = […]

The unit of thermal conductivity is

Options

(a) Wm⁻¹K⁻¹ (b) JK⁻¹ (c) WmK (d) JK

Correct Answer:

Wm⁻¹K⁻¹

Explanation:

The heat current related to difference of temperature across the length l of a […]

Pascal-second has the dimensions of

Options

(a) force (b) energy (c) pressure (d) coefficient of viscosity

Correct Answer:

coefficient of viscosity

Explanation:

Pascal second (Ns/m²) is the unit of dynamic viscosity and its […]

The magnetic moment has dimensions of

Options

(a) [LA] (b) [L²A] (c) [LT⁻¹A] (d) [L²T⁻¹A]

Correct Answer:

[L²A]

Explanation:

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Dimensions of electrical resistance are

Options

(a) [ML²T⁻³A⁻¹] (b) [ML²T⁻³A⁻²] (c) [ML³T⁻³A⁻²] (d) [ML²T³A²]

Correct Answer:

[ML²T⁻³A⁻²]

Explanation:

No explanation available. Be the first to write the explanation for this question by […]