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What is the correct energy transformation during burning of a candle?
6 marks2025
Complete the following by choosing the correct answers from the bracket:
- In uniform circular motion the centrifugal force acts __________ (towards the centre/away from the centre/along the tangential direction].
- Refractive index of a medium is independent of __________ [temperature/angle of incidence/wavelength of light).
- Heat absorbed during change of phase depends on __________ [mass/change in temperature/specific heat capacity] of the substance.
- 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].
Board paper · 2025 · Oswaal Books (reproduction of CISCE board paper)
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