അതിനാൽ, ഞങ്ങൾ ഈ വശത്ത് നിന്ന് ഒരു പ്രകാശത്തെ പ്രകാശിപ്പിക്കുകയാണ്, ഈ പ്രകാശം എയിൽ എത്തുന്നു, ഈ പ്രകാശവും എഫിലേക്ക് എത്തുന്നു, എന്നാൽ ജ്യാമിതി കാരണം ഇത് കാണാൻ എത്തുന്നില്ല, ഒരു നിഴൽ ഉണ്ടാകും.
మనం ఈ వైపు నుండి ఒక కాంతిని ప్రకాశిస్తున్నాము, ఈ కాంతి A కి చేరుకుంటుంది, ఈ కాంతి F కి కూడా చేరుకుంటుంది, కానీ జ్యామితి కారణంగా మీరు దీనిని చూడలేరు.