Water rises in a vertical capillary tube upto a length of 10 cm. If the tube is inclined at 45°, the length of water risen in the tube will be

Inclination angle (∅)= 30°  Speed of centre of mass (v)= 5m/s  (A) acceleration of the cylinder rolling up the inclined plane is  Given by the formula,  a = -gsin∅/(1 + k²/r²)  Where K = radius...

(b) : In a freely falling elevator g = 0 Water will rise to the full length i.e., 20cm to tube.

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 (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 =...

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.

Given,  Mass of the helicopter, mh = 1000 kg  Mass of the crew and passengers, mp= 300 kg  Total mass of the system, m = 1300 kg  Acceleration of the helicopter, a = 15...