Home
Class 11
PHYSICS
(a) An alumunium measuring rod which is ...

(a) An alumunium measuring rod which is correct at `5^@ C`, measures a certain distance as `88.42 cm at 35 ^@ C`. determine the error in measuring hr distance due to the expansion of the rod. (b) If this aluminium rod measures a length of steel as `88.42 cm at 35 ^@ C`, what is the correct length of the steel at `35 ^@ C` ?

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
(a) `Delta l = (l alpha Delta theta)`
= `(88.42)(2.4 xx 10^-5)(35 - 5)`
= `0.064 cm`
(b) At higher temperature, it measures lesss. Hence,
`l = l' + Delta l`
= `(88.42) + (0.064) = 88.484 cm`
Promotional Banner

Topper's Solved these Questions

  • THERMOMETRY,THERMAL EXPANSION & KINETIC THEORY OF GASES

    DC PANDEY|Exercise Exercise 20.3|7 Videos

  • THERMOMETRY,THERMAL EXPANSION & KINETIC THEORY OF GASES

    DC PANDEY|Exercise Exercise 20.4|3 Videos

  • THERMOMETRY,THERMAL EXPANSION & KINETIC THEORY OF GASES

    DC PANDEY|Exercise Exercise 20.1|5 Videos

  • THERMOMETRY THERMAL EXPANSION AND KINETIC THEORY OF GASES

    DC PANDEY|Exercise Medical entrance gallary|30 Videos

  • UNIT AND DIMENSIONS

    DC PANDEY|Exercise Assertion And Reason|2 Videos

Similar Questions

Explore conceptually related problems

An aluminium measuring rod, which is correct at 5^@C measures the length of a line as 80 cm at 45^@C If thermal coefficient of linear expansion of aluminium is 2.50xx10^(-4)//^@C , the correct length of the line is:

A steel rod is 3.000 cm at 25^@C . A brass ring has an interior diameter of 2.992 cm at 25^@C . At what common temperature will the ring just slide on to the rod?

You are provided three scales A, B and C as shown in Fig. 10.6 to measure a length of 10 cm. For the correct measurement of the length you will use the scale

20 mL of hydrogen measured at 15^(@)C is heated to 35^(@)C . What is the new volume at the same pressure?

The length of a rod is measured as 35.3cm then the gradutions ont eh scale are up to

Three measuring rods are 45 cm, 50 cm and 75 cm in length. What is the least length of a rope that can be measured by the full length of each of these three rods ?

A student measured the length of a rod and wrote it as 3.50 cm. Which instrument did he use to measure it ?

A steel tape gives corrent measurement at 20^(@)C. A piece of wood is being measured with the steel tape at 0 C.' The reading is 25 cm on the tape. The real length of the given pices of wood must be