Home
Class 12
PHYSICS
A steel scale is to be prepared such tha...

A steel scale is to be prepared such that the millimeter intervals are to be accurate within `6 xx10^(-5)mm`. The maximum temperature variation form the temperature of calibration during the reading of the millimeter marks is `(alpha = 12 xx 10^(-6)//"^(@)C)`

A

`4.0""^(@)C`

B

`4.5""^(@)C`

C

`5.0""^(@)C`

D

`5.5""^(@)C`.

Text Solution

AI Generated Solution

Promotional Banner

Similar Questions

Explore conceptually related problems

A steel metre scale is to be ruled so that the millimetre intervals are accurate to within about 5 xx 10^(-5) mm at a certain temperature. What is the maximum temperature variation allowable during the ruling ? Given alpha for steel = 1.1 xx 10^(-5).^(@)C^(-1) .

A steel tape measures that length of a copper rod as 90.0 cm when both are at 10^(@)C , the calibration temperature, for the tape. What would the tape read for the length of the rod when both are at 30^(@)C . Given alpha_("steel")=1.2xx10^(-5)" per".^(@)Cand alpha_(Cu)=1.7xx10^(-5)per .^(@)C

What is the percentage change in length of 1m iron rod it its temperature changes by 100^(@)C. alpha for iron is 2 xx 10^(-5)//"^(@)C .

Two stars radiate maximum energy at wavelength 3.6xx10^(-7) m and 4.8xx10^(-7) m respectively. What is the ratio of their temperatures ?

The scale on a steel meter stick is calibrated at 15^@ C . What is the error in the reading of 60 cm at 27^@C ? alpha_(steel) =1.2 xx 10^-5 (.^@ C)^-1 .

A steel tape is correctly calibrated at 20^(@)C and is used to measure the length of a table at 30^(@)C . Find the percentage error in the measurement of length. [alpha_(steel) = 11 xx 10^(-5)//.^(@)C]

The temperature of sun is 5500 K and it emits maximum intensity radiation in the yellow region (5.5 xx10^(-7)m) . The maximum radiation from a furnace occurs at wavelength 11 xx 10^(-7)m The temperature of furnace is

A steel tape placed around the earth at the equator when the temperature is 10^(@)C . What will be the clearance between the tape and the ground (assumed to be uniform) if the temperature of the tape rises to 40^(@)C ? Neglect expansion of the earth. Radius of earth at equator is 6400 km & alpha_(steel)= 1.2 xx 10^(-5)K^(-1)

A rail track made of steel having length 10 m is clamped on a railway line at its two ends on a summer day due to rise in temperature by 20^@C, it is deformed as shown in fig. Find x (displacement of the centre) if alpha_(steel) = 1.2 xx 10^(-5)//^@C.

The variation of length of two metal rods A and B with change in temperature is shown in Fig. the coefficient of linear expansion alpha_A for the metal A and the temperature T will be? ( alpha_(A)=3x10^(-6)/ C )