Beyond what distance a normal eye can see objects clearly? [#713]

For a clear vision, the image must be on the retina. The image distance is therefore fixed for clear vision and it equals the distance of retina from eye lens. It is about 25 cm for a grown up person. A person can theoretically have clear vision of an object situated at any large distance from the eye.

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For a clear vision, the image must be on the retina. The image distance is therefore fixed for clear vision and it equals the distance of retina from eye lens. It is about 25 cm for a grown up person. A person can theoretically have clear vision of an object situated at any large distance from the eye.

The cat is hiding under the bed.

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The cat is hiding under the bed.

The Great Barrier Reef is the world's largest coral reef system, composed of over 2,900 individual reefs and 900 islands.

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The Great Barrier Reef is the world's largest coral reef system, composed of over 2,900 individual reefs and 900 islands.

The Harappan civilization, also known as the Indus Valley Civilization, is the earliest known civilization in India. Archaeologists have discovered various silver artifacts, such as ornaments, beads, and tools, at Harappan sites, indicating that they were familiar with and used silver in their daily lives.

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The Harappan civilization, also known as the Indus Valley Civilization, is the earliest known civilization in India. Archaeologists have discovered various silver artifacts, such as ornaments, beads, and tools, at Harappan sites, indicating that they were familiar with and used silver in their daily lives.

Moidams are the distinctive burial mounds constructed for Ahom royalty and their families.

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Moidams are the distinctive burial mounds constructed for Ahom royalty and their families.

Nagaland

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Nagaland

The Himalayas are a crescent-shaped mountain range that stretches for over 2,500 kilometers (1,550 miles). The range varies in width from 350 kilometers in the west to 150 kilometers in the east.

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The Himalayas are a crescent-shaped mountain range that stretches for over 2,500 kilometers (1,550 miles). The range varies in width from 350 kilometers in the west to 150 kilometers in the east.

The Moamoriyas first established Ramakanta or Ramananda as King.

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The Moamoriyas first established Ramakanta or Ramananda as King.

Kaziranga National Park, located in Assam, India, is renowned worldwide for its exceptional conservation efforts, particularly for the one-horned rhinoceros. It hosts the largest population of this critically endangered species.

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Kaziranga National Park, located in Assam, India, is renowned worldwide for its exceptional conservation efforts, particularly for the one-horned rhinoceros. It hosts the largest population of this critically endangered species.

Bhabendra Nath Saikia

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Bhabendra Nath Saikia

The building was designed by the British architects Sir Edwin Lutyens and Sir Herbert Baker in 1912–1913. The structure was built over a period of six years, starting in 1921 and culminating in 1927.

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The building was designed by the British architects Sir Edwin Lutyens and Sir Herbert Baker in 1912–1913. The structure was built over a period of six years, starting in 1921 and culminating in 1927.