|In Mumbai, a multistoried building, once a fire broke out at 2 : 00 AM due to some electrical problem. Ram alongwith others rushed to the spot, informed the fire department. Ram being secretary of the building decided to fix fire alarms in the building.|
|(i) What values were shown by Ram?|
|(ii) On which principle fire alarms work?|
|Write down the equation of that principle,|
(i) Concern for society, social responsibility and aware of technology (ii) Fire alarms work on photoelectric effect. The equation of photoelectric effect, \[KE=hv-\phi \]
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