HSA Mixed Practice Test #385

Question 1

Snell's law is:‌​‍

Accepted Answer

n₁ sin i = n₂ sin r — Snell's law of refraction: n₁ sin θ₁ = n₂ sin θ₂.‌​‍

Answer

sin i × sin r = constant

Answer

n₁ sin r = n₂ sin i

Answer

sin i + sin r = n

Question 2

The Babri Masjid demolition occurred on:‌​‍

Accepted Answer

6 December 1992 — Masjid demolished on 6 December 1992 by kar sevaks. ‌​‍Triggered communal riots nationally. Ayodhya verdict by SC in 2019 awarded site for Ram Mandir.

Answer

31 October 1984

Answer

6 December 1990

Answer

6 December 1984

Question 3

Testosterone from:

Accepted Answer

Testes — Male sex hormone.

Answer

Ovary

Answer

Thyroid

Answer

Pituitary

Question 4

The image formed by a convex lens when the object is between F and optical centre is:‌​‍

Accepted Answer

Virtual, erect, magnified (same side as object) — Object inside F of convex lens → virtual, erect, magnified image — used in magnifying glass.‌​‍

Answer

Real, inverted

Answer

Virtual, inverted

Answer

Real, diminished

Question 5

The State Government decides to revise the curriculum for Class 10 Social Science textbooks to incorporate updated historical perspectives and contemporary socio-economic issues. Which autonomous body under the General Education Department is primarily entrusted with the responsibility of developing, designing, and publishing this revised curriculum and textbooks?

Accepted Answer

D. State Council of Educational Research and Training (SCERT) — The State Council of Educational Research and Training (SCERT) is the apex body in Kerala responsible for curriculum development, textbook preparation, teacher training, and educational research for school education. Pareeksha Bhavan handles examinations, and the DGE is the overall administrative head, while the Kerala State Literacy Mission Authority focuses on adult literacy programs.

Answer

A. Kerala State Literacy Mission Authority

Answer

B. Pareeksha Bhavan

Answer

C. Directorate of General Education (DGE)

Question 6

According to Piaget's theory of cognitive development, which stage is characterized by the development of abstract thinking and hypothetical reasoning?

Accepted Answer

D. Formal operational stage — The formal operational stage (12 years and above) is when individuals develop the ability to think abstractly, reason logically, and consider hypothetical scenarios. The sensorimotor stage focuses on sensory and motor skills, the preoperational stage on symbolic thought, and the concrete operational stage on logical thinking about concrete objects.

Answer

A. Sensorimotor stage

Answer

B. Preoperational stage

Answer

C. Concrete operational stage

Question 7

Pernicious anaemia:‌​‍

Accepted Answer

B12 — Vitamin B12 deficiency.‌​‍

Answer

B6

Answer

C

Answer

B1

Question 8

Supreme Court first judgment on basic structure:‌​‍

Accepted Answer

Kesavananda Bharati — Kesavananda Bharati (1973) — established Basic Structure doctrine.‌​‍

Answer

Maneka Gandhi

Answer

Golaknath

Answer

Minerva Mills

Question 9

Which acid is present in the Soya beans?‌​‍

Accepted Answer

Phytic acid — Phytic acid is abundant in soybeans.‌​‍

Answer

Capric acid

Answer

Malic acid

Answer

Oxalic acid

Question 10

Telephone invented by:‌​‍

Accepted Answer

Bell — Alexander Graham Bell (1876).‌​‍

Answer

Edison

Answer

Tesla

Answer

Marconi

HSA Mixed Practice Test #385