Physics Lightning is produced when Water vapour produces electricity in the clouds Clouds strike against impurities in air and the friction burns up these impurities Similar charges of electricity rush towards each other and then get repelled Strong opposite charges in different clouds break down the resistance offered by the intervening air Water vapour produces electricity in the clouds Clouds strike against impurities in air and the friction burns up these impurities Similar charges of electricity rush towards each other and then get repelled Strong opposite charges in different clouds break down the resistance offered by the intervening air ANSWER DOWNLOAD EXAMIANS APP
Physics On which day 'National Science Day' is celebrated in India ? 43886 43887 43884 43889 43886 43887 43884 43889 ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of sound in moist air is more than in dry air because the moist air has Less pressure than dry air. More pressure than dry air. Less density than dry air. More density than dry air. Less pressure than dry air. More pressure than dry air. Less density than dry air. More density than dry air. ANSWER DOWNLOAD EXAMIANS APP
Physics In a conductor There is no conduction band The forbidden energy gap is very narrow The valence band and the conduction band overlap each other The forbidden energy gap is very wide There is no conduction band The forbidden energy gap is very narrow The valence band and the conduction band overlap each other The forbidden energy gap is very wide ANSWER DOWNLOAD EXAMIANS APP
Physics When a bar magnet is cut into two equal halves, the pole strength of each piece – Becomes double Becomes half Becomes zero Remains the same Becomes double Becomes half Becomes zero Remains the same ANSWER DOWNLOAD EXAMIANS APP
Physics Red light is used for signals because it has Long wavelength High intensity High frequency Low refraction in the medium Long wavelength High intensity High frequency Low refraction in the medium ANSWER DOWNLOAD EXAMIANS APP
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