Physics
Each of the substances given below is supplied with same amount of heat. Which one will attain the highest temperature?
| Substance | Specific heat capacity (cal/g°C) |
|---|---|
| Lead | 0.031 |
| Aluminium | 0.21 |
| Copper | 0.095 |
| Iron | 0.115 |
- Aluminium
- Copper
- Iron
- Lead
Related Questions
In the given circuits Y and Z, the resistors, R1 and R2, are connected in :
- series in both the circuits
- parallel in both the circuits
- parallel in Y and series in Z
- series in Y and parallel in Z
A radioactive element P emits one α-particle and transforms to a new element Q. What will be the position of the element Q in the periodic table?
- One group to the left of P
- One group to the right of P
- Two groups to the right of P
- Two groups to the left of P
The following figure shows a small bar magnet falling freely through a copper ring. For the observer at A, the direction of the induced current will be :
- clockwise when magnet is above and below the ring
- anticlockwise when magnet is above and below the ring
- anticlockwise when magnet is above the ring and clockwise when the magnet is below the ring
- clockwise when magnet is above the ring and anticlockwise when the magnet is below the ring
Complete the following by choosing the correct answers from the bracket:
(a) In uniform circular motion the centrifugal force acts …………… [towards the centre/away from the centre/along the tangential direction].
(b) Refractive index of a medium is independent of …………… [temperature/angle of incidence/wavelength of light].
(c) Heat absorbed during change of phase depends on …………… [mass/change in temperature/specific heat capacity] of the substance.
(d) Emf of a cell is …………… [greater than/less than/equal to] the terminal voltage when the cell is in open circuit.
(e) In a step-up transformer the turns ratio is …………… [more than 1/ less than 1/ equal to 1].
(f) The nuclear radiation with lowest ionising power is …………… [α/β/γ]