Home
Class 11
PHYSICS
A mercury barometer reads 75cm in vertic...

A mercury barometer reads `75cm` in vertical position . If the tube is inclined by `60^(@)` to the vertical, the length of the mercury in the tube will be

A

37.5 cm

B

75cm

C

112.5cm

D

150cm

Text Solution

Verified by Experts

The correct Answer is:
D

`cos 60^(@) = h/l`

or, `l = (h)/(cos 60^(@)) = (75)/(1//2) cm = 150cm`.
The vertical height of mercury level in a barometer does not change.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • FLUID MECHANICS

    A2Z|Exercise AIIMS Questions|9 Videos
  • GENERAL KINEMATICS AND MOTION IN ONE DIMENSION

    A2Z|Exercise Chapter Test|30 Videos

Similar Questions

Explore conceptually related problems

Water rises in a vertical capillary tube up to a length of 10 cm. If the tube is inclined at 45^@ , the length of water risen in the tube will be

The radii of two capillary tubes A and B are in the ratio of 3:1. If water rises to a height of 3 cm in tube A, how much it will rise in tube B. If the tube A is inclined at an angle of 30^(@) with the vertical, then what will the position of water in the tube.

Knowledge Check

  • Water rises to a height of 5 cm when a narrow glass tube is dipped vertically in it . If the tube is inclined at 60^(@) to the vertical , then the rise of water in the capillary tube will be

    A
    5 cm
    B
    10 cm
    C
    `7.5` cm
    D
    `2.5` cm
  • The meniscus of mercury in the capillary tube is

    A
    Convex
    B
    Concave
    C
    Plane
    D
    Uncertain
  • A capillary tube when immersed vertically in a liquid records a rise of 6 cm . If the tube is immersed inclined 30^@ with the vertical , then length of liquid column along the tube will be

    A
    `2sqrt(3) cm `
    B
    `4sqrt(3)cm`
    C
    `4/(sqrt(3))cm`
    D
    12 cm
  • Similar Questions

    Explore conceptually related problems

    A barometer tube reads 75 cm of Hg. If tube is : gradually inclined at an angle of 30^(@) with horizontal, keeping the open end in the mercury container, then find the length of mercury column in the barometer ■ tube

    A barometer tube reads 76 cm of mercury. If the tube is gradually inclined at an angle of 60 with vertical, keeping the open end immersed in the mercury reservoir, the length of the mercury column will be

    Water rises in a vertical capillary tube up to a height of 2.0 cm. If the tube is inclined at an angle of 60^@ with the vertical, then up to what length the water will rise in the tube ?

    Water rises to a height of 2 cm in a capillary tube. If the tube is tilted 60^@ from the vertical, water will rise in the tube to a length of

    Water rises in a capillary tube to a height H , when the capillary tube is vertical. If the same capillary is now inclined to the vertical the length of water column in it will