Define parsec. 1 text{fm} = dots mathring{A | vedclass

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(A) parsec (parallax second) is a unit of distance used in astronomy,defined as the distance at which an arc of $1 \ 	ext{AU}$ (astronomical unit) su

Vedclass · Accepted Answer

$10^{-5}$

Vedclass · Answer

(A) parsec (parallax second) is a unit of distance used in astronomy,defined as the distance at which an arc of $1 \ 	ext{AU}$ (astronomical unit) subtends an angle of $1 \ 	ext{arcsecond}$ $(1'')$. It is approximately equal to $3.08 	imes 10^{16} \ 	ext{m}$.
To convert $1 \ 	ext{fm}$ (femtometer) to $\mathring{A}$ $(\mathring{A}):$
$1 \ 	ext{fm} = 10^{-15} \ 	ext{m}$
$1 \ \mathring{A} = 10^{-10} \ 	ext{m}$
Therefore,$1 \ 	ext{fm} = \frac{10^{-15} \ 	ext{m}}{10^{-10} \ 	ext{m}} \ \mathring{A} = 10^{-5} \ \mathring{A}$.

List-$I$	List-$II$
$(A)$ Distance between earth and stars	$(1)$ Microns
$(B)$ Inter-atomic distance in a solid	$(2)$ $\mathring{A}$s
$(C)$ Size of the nucleus	$(3)$ Light years
$(D)$ Wavelength of infrared laser	$(4)$ Fermi

Define parsec. $1 \ \text{fm} = \dots \ \mathring{A}$.

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