Four friends used the following ways to see the solar eclipse. Who among them was being careless? (i) Ravikiran used a solar eclipse goggle. (ii) Jyothi used a mirror to project the Sun's image. (iii) Adithya saw the Sun directly with his eyes. (iv) Aruna attended a programme arranged by a planetarium.
Adithya was being careless by viewing the Sun directly with his naked eyes.
Direct viewing of the Sun during a solar eclipse can cause permanent eye damage or blindness because the Sun's rays remain intense enough to damage the eyes even during an eclipse.
Ravikiran used proper protective eyewear, Jyothi used a safe projection method, and Aruna attended a safe organised viewing event.
Explanation
The chapter explicitly warns: 'During a solar eclipse, one might be tempted to look at the Sun, thinking that it wouldn't be strong enough to cause harm to our eyes. However, even during the eclipse, the Sun is intense enough to damage the eyes and cause blindness. Thus, directly viewing solar eclipse must be strictly avoided.' The chapter also mentions safe viewing methods including eclipse goggles and projection methods using mirrors, as well as attending programmes arranged by planetaria.
Solution Steps
Adithya was careless by viewing the Sun directly with his naked eyes
Direct viewing of the Sun during a solar eclipse can cause permanent eye damage or blindness
The Sun's rays remain intense enough to damage the eyes even during an eclipse
Safe viewing methods include: solar eclipse goggles, mirror projection, and attending planetarium programmes