Question
The production of e.m.f. by maintaining a difference of temperature between the two junctions of two different metals is known as(a) Joule effect(b) Seebeck effect(c) Peltier effect(d) Thomson effect
✓
Answer
(b) Seebeck effect
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
A closely wound coil of $100$ turns and area of cross$-$section $1 \ \mathrm{cm}^2$ has a coefficient of self$-$induction $1 \ mH .$ The magnetic induction in the centre of the core of the coil when a current of $2 A$ flows in it, will be
→In hydrogen atom the angular momentum of electron in ground energy state is :
A conductor has $14.4 \times 10^{-19}$ coulombs positive charge. The conductor has $($Charge on electron $=1.6 \times 10^{-19}$ coulombs$)$
→Assertion : Isobars are the element having same mass number but different atomic number.
Reason : Neutrons and protons are present inside nucleus.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
Reason : Neutrons and protons are present inside nucleus.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
The given figure represents a material which is
Three photons coming from excited atomic-hydrogen sample are picked up. Their energies are 12.1eV, 10.2 eV and 1.9eV. These photons must come from:
- A single atom.
- Two atoms.
- Three atoms.
- Either two atoms or three atoms.
For a given temperature difference, which of the following pairs will generate maximum thermo e.m.f.(a) Antimony-bismuth(b) Silver-gold(c) Iron-copper(d) Lead-nickel
In which of the following situations, the heavier of the two particles has smaller de Broglie wavelength? The two particles:
In a double slit arrangement fringes are produced using light of wavelength 4800 Å. One slit is covered by a thin plate of glass of refractive index 1.4 and the other with another glass plate of same thickness but of refractive index 1.7. By doing so the central bright shifts to original fifth bright fringe from centre. Thickness of glass plate is(a) 8 mm (b) 6 mm(c) 4 mm (d) 10 mm
Two photons having _________________: