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A blue lamp emits light of wavelength 6.6 x 1014 Hz. If the lamp is rated at 40 W and 8% of the energy appears as emitted light, the number of photons it emits per second is |
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Answer» शब्दांचे वचन बदला.i) तिकीटiii) आगगाडीii) प्रवासiv) गर्दी |
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