To Explain:The color appear by a shirt if the reflected form the shirt passed through a red filter and then through a green filter.
Answer to Problem 48R
One disadvantage it is warm source of light and hence requires air conditioning to cool the roomand it has higher operating cost.
Explanation of Solution
Introduction:
An incandescent light bulb, incandescent lamp or globe of incandescent light is an electric light with a wire filament that is heated until it glows. The filament is locked into a bulb to protect the filament against oxidation. Current is supplied by terminals or wires in the glass embedded in the filament.
Disadvantages of incandescent bulb are it is energy inefficient, it has very short lamp life time i.e. about
Conclusion:
Hence, one disadvantage it is warm source of light and hence requires air conditioning to cool the roomand it has higher operating cost.
Chapter 12 Solutions
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