https://hi.ketiadaan.com/post/kaya-hata-ha-jab-parakasha-ka-karanae-samatal-tharapanae-ka-sataha-para-samanaya-rapa-sa-garata-ha-kya-hota-hai-jab-prakaash-kee-kiran-samatal-darpan-kee-satah-par-saamaany-roop-se-giratee-hai