A 20cm long capillary tube is dipped in water. The water rises up to 8cm.

The correct answer is (b) 10√2 cm Explanation:  When the tube is inclined, the vertical rise remains the same. So the water in the inclined tube rises to 10*sec45° =10√2 cm.

The correct answer is (d) 20 cm. Explanation:  The rise in a capillary tube is given as h = 2S.cosθ/rρg When the entire arrangement is in a freely falling elevator, the effective...

(c) The surface tension may be zero. (d) The contact angle may be 90°. Explanation:  The rise in a capillary tube is given as, h = 2S.cosθ/rρg The capillary tube has a certain...

The correct answer is (c) v EXPLANATION:  When a tube of length L open at both ends has a fundamental frequency ν, then v = V/2L where V is the velocity of...

The correct answer is (4) Explanation:  The rise in a capillary tube is given as h = 2S.cosθ/rρg When the entire arrangement is in a freely falling elevator, the effective g =...

(d) The state of the rod does not change after steady state is reached.

Rise/depression = 2S.cosθ/rρg  For mercury -0.02 = 2S'.cosθ/rρ'g  ------- (i)  For water rise, h = 2S.cos0°/rρg     ------- (ii)  Dividing (ii) by (i)  h/0.02 = -Sρ'/(S'*cosθ*ρ)  →h = -0.02*Sρ'/(1000S'.cosθ)  S' =7.5 x 10⁻²  N/m. S =...

P =2T/r P = F/r

(d) The length of water column in the capillary tube will be 20cm.

solution (A,C) h = (2σcosθ)/(rρgeff)(ρ is density of water)