As for darkness, where, now, is its place? ” You may be aware that for a long time, the view prevailed that light travels like a wave, like the ripples we can watch in a pond.
या प्रश्‍नाचे त्याच ज्ञानकोशाने दिलेले हे उत्तर पाहा: “[प्रकाश] तरंग आणि कण दोन्ही असू शकत नाही.