A. Fluorescent bulb
B. Neon signs
C. Lasers
D. All of these
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Related Mcqs:
- What do we call to sudden expansion of plasma ?
- A. Avogadros law B. Grahams law of diffusion C. Joule Thompson effect D. Daltons law of partial pressure...
- Isotopes differ in_________________?
- A. properties which depend upon mass B. arrangement of electrons in orbitals C. chemical properties D. all of the above...
- Crystallites are present in_________________?
- A. crystalline solids B. amorphous solids C. liquid crystals D. all of the above...
- Nucleic acids were first demonstrated in_________________?
- A. Pus cells B. Sperm heads C. 1872 D. all of the above...
- Reactivity due to pi-electrons is present in_________________?
- A. alkane B. alkene C. alkyne D. both B & C...
- The volume occupied by 1.4g CO at S.T.P is___________________?
- A. 22.4 dm3 B. 2.24 dm3 C. 1.12 cm3 D. 1.12 dm3...
- Only London dispersion forces are present among the_________________?
- A. Molecules of water in liquid state B. Atoms of helium in gaseous state at high temperature C. Molecules of hydrogen chloride gas D. Molecules of solid iodine...
- Which is the unit of (K) rate constant for zero order reaction ?
- A. s-1 B. mol dm-3 s-1 C. mol-1 dm3 s-1 D. mol-2 dm6 s-1...
- For industrial preparation of CH3CHO catalytic promoter is_________________?
- A. PdCl2 B. Cu2Cl2 C. CuCl2 D. PbCl2...
- Which element has same isotopes like palladium___________________?
- A. Nickel B. Calcium C. Cadmium D. Tin...
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