Mercury is a better barometric fluid than water because
Mercury is a better barometric fluid than water because
i. it needs no colouring
ii. its density is many times greater than that of water
iii. it does not wet glass
iv. it has a high vapour pressure
v. it has a high boiling point.
Which of the above statements are true?
i and ii only
i, ii and iii only
iii and iv only
iv and v only
iii, iv and v only
Correct answer is B
The advantages of use of mercury in a barometer are :
When an atom loses or gains a charge, it becomes ...
A 40KW electric cable was uses to transmit electricity through a resistor of resistance 2.00Ω ...
Which of the following is true of sounds? ...
Which of the following will convert a milliammeter to a voltmeter? ...
Which of the following explains the concave meniscus of water in a glass tube? ...
A sheet of white paper viewed through blue glass appears blue because ...