Question

Numericals of L.1 physics( S.L.Arora) with solution....



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class 11th




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Answer 1

numericals

1) the radius of a solid sphere is measured as 11.2 4 centimetre what is the surface area of the square to appropriate significant figure. ans= 1558cmsqare

2) the mass of a body is 27 5.32 to gram

and its volume is 36.4 1 centimetre cube

. express it density appropriate significant figures.

ans = 7.562 gcm^-3

3) a planet moves toward the sun in nearly circular orbit, its period of revolution t depends upon:.

• the radius r of orbit
• mass m of the Sun
• the gravitational constant g

show that

$t {}^{2} directly \: proportional \: to \: r {}^{3}$

taking the proportionality constant as 2π

write the expression for t

I hope my answer help you ❤️

Answer 2

Explanation:

Dear in the view of xam point it's not important...

Answer 3

Explanation:

Dear in the view of xam point it's not important...