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i, kept an
Calculate liquid surface of a lake?
préssur, P. • 1.01
J. You rnay take
and den.iry ot m
• Colculate the Oqua
pr—ure and thrust on the the flask
An w-arr 125 m If a small plate
Mea iS at the bottom
Of thrust due to on this
in the are in
with cm and oil
density Oil. Also, find the relative density Oi Oil.
8. A mercury pressure
7S column the o i
water column for pressure Given
Oi mercury 13.6 kg and
9. in Water pipe ground Of a
building is 1.5 whereas the pressure on the
is 0.9 • I Calculate Of the
10. Calculate the barometer reading at a place Where
pressure bar. Given density
mercury is kg
IL A srn_au metallic piece weighs g and its volume is
20 em'- It is immersed in water, Calculate the
2. At "ca level, the atmospheric pressure is 76 cm of
mercury. If air pressure falls linearly by 10 mm Of
men-wy for m of a«ent. calculate height
of a hill where 'he barometer reading is 70 an of
An object Weighs 3.2 N in air and 2.7 N
completely water. Calculate the
in weight oi the object in wat" (b) upthrt.t
obß•ct, and relative density of the object.
u. volume SO weighs in
contpletely immersed in a liquid of 09
Firni upthrust due to the liquid, and (b) I
Of in the liquid.
15. A body weigh, 350 gf in air and 210
in weight of the bvuiy, (b) upthrust on the bod
(C) relative d«msity of the body. (d) density M
body. and (e) volume of the body. Given that d
o' water g cm
• of brass weigt-b g in air g
16: A pim.•c
immergd in water The density of water g
(a) What is the upthrust on brass piece?
(b) What is the volume of brass piece?
(c) What is the density Of brass piece?
17. An icelwrg of density 917 kg mo floats on sea
density 1026 kg m A. What of the
oi remains submerged in water?
IS. A article floats on water with of its
lying above the water surface. If density of
1.0 10' kB m-3. then find the density Of
19. Mass Of a wooden block is 24.0 kg and its volume
is 0.04 m'. Find the (a) density of wood,
(b) volume of wooden blcxk tx•low the watc•r
when i' floats on water surface. Given that density"
water = kg m
20. A hollow iron ball of volume 200 cm3 weighs g-
floats on water surface. Calculate the (a) effective
density of the steel ball, (b) fraction Of volume oi
ball which is above water surface. and (c) appar«
VA-eight of the ball While floating. Given that
of water is g cm
21. A piece of wood of uniform cross-section and heigh
18 Cm floats vertically with its height 13.5 cm•
water and 12 cm in a given liquid. Find the
Of the wood and the liquid. Take density Of I
I O g cm-3
22. A slab of ice (density kg has a volumed'
12K" slab floats in saturated saltish sols/
of density 100S kg m•. Find the volume of ice
remaining above the solution surface.
23. A hollow cylinder closed at one end weighs 85 g
It floats vertically in a liquid of density 1.2 g c'
When 35 g of lead shots are poured into it.
Of immersion Of cylinder is 10 cm. Calculate
(a) upthrust. and (b) area Of cross-section Of
25. A •