Ornithology — Ornithology. Entomology = insects.

Angle at which refracted ray is perpendicular to reflected; reflected is fully polarised — tan θB = n₂/n₁. For glass-air θB ≈ 57°. Polarising sunglasses use this principle.

Northern-most point — Siachen Glacier, J&K.

Both — Hindustan Socialist Republican Association (1928).

HSA Mixed Practice Test #880

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Q1.Synonym of ZENITH:‌‍

A. Bottom B. Middle C. Start D. Top

Q2.Study of birds:‌‍

A. Entomology B. Ornithology C. Ecology D. Seismology

Q3.Armed Forces Tribunal:

A. 2007 B. 2009 C. 2011 D. 2013

Q4.Bhakra Nangal Dam is on which river?

A. Beas B. Ravi C. Sutlej D. Chenab

Q5.Convex lens can form:‌‍

A. Both real and virtual B. Only virtual images C. Only real images D. No images

Q6.Brewster's angle:‌‍

A. Angle at which refracted ray is perpendicular to reflected; reflected is fully polarised B. 45° C. Critical angle D. Zero

Q7.Indira Col is at:‌‍

A. Southern tip B. Northern-most point C. Eastern tip D. Western tip

Q8.The Queen's Proclamation (1858) transferred India from:‌‍

A. Mughals to British B. Company to Crown C. Crown to Company D. Britain to India

Q9.The ear bones (ossicles) are named:‌‍

A. Femur, tibia, fibula B. Ulna, radius, humerus C. Skull, jaw, neck D. Malleus, incus, stapes

Q10.HSRA formed by:

A. Bhagat Singh B. Chandrashekhar Azad C. Both D. Bose

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HSA Mixed Practice Test #880