Question
A spherical shell is heated. The volume change according to the equation $\text{V}_\theta=\text{V}_\theta(1+\gamma\theta)$. Does the volume refer to the volume enclosed by the shell or the volume of the material making up the shell?
✓
Answer
When a spherical shell is heated, its volume changes according to the equation, $\text{V}_\theta=\text{V}_0(1+\gamma\triangle\theta)$. The volume referred to here is the volume of the material used to make up the shell, as its volume expands with the rise of temperature with coefficient of expansion of volume $\gamma.$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Find the equivalent resistance of the network shown in figure. between the points a and b.
Calculate the value of $i$ as shown in the figure.
→A copper sphere is suspended in an evacuated chamber maintained at 300K. The sphere is maintained at a constant temperature of 500K by heating it electrically. A total of 210W of electric power is needed to do it. When the surface of the copper sphere is completely blackened, 700W is needed to maintain the same temperature of the sphere. Calculate the emissivity of copper.
What is a filter circuit? Explain its functioning.
If an object far away from a convex mirror moves towards the mirror, the image also moves. Does it move faster, slower or at the same speed as compared to the object?
When the last image of the telescope is formed at infinity, then what is the length of its tube? If the image is formed at the minimum distance of clear vision then will the length be less or more than before?
A galvanometer has a resistance of $8 \Omega$ . It gives a full scale deflection for a current of $10 \ mA.$ It is to be converted into an ammeter of range $5 A.$ The only shunt resistance available is of $0.02 \Omega$ , which is not suitable for this conversion. Find the value of resistance $R$ that must be connected in series with the galvanometer $($Fig$.)$ to get ammeter of desired range.
→Answer the following question:
Does the apparent depth of a tank of water change if viewed obliquely? If so, does the apparent depth increase or decrease?
Does the apparent depth of a tank of water change if viewed obliquely? If so, does the apparent depth increase or decrease?
A staircase contains three steps each 10cm high and 20cm wide (figure). What should be the minimum horizontal velocity of a ball rolling off the uppermost plane so as to hit directly the lowest plane?
Electric potential at a point $P , V (x, y, z)=$ $6 x-8 x y^2-8 y+6 y z-4 z^2$. Find the electric force on a 4 coulomb point charge located at the origin.
→