Plus 2 Lecturer Mixed Practice Test #3

Question 1

Antonym of RAISE:‌​‍

Accepted Answer

Lower — Raise ↔ lower.‌​‍

Answer

Elevate

Answer

Lift

Answer

Hoist

Question 2

Igneous rock example:

Accepted Answer

Granite, basalt — Granite: intrusive (slow cooling, coarse). Basalt: extrusive (fast, fine). Deccan Traps = basalt.

Answer

Limestone

Answer

Marble

Answer

Sandstone

Question 3

A monochromatic light source illuminates a metal surface, causing photoelectrons to be emitted. If the intensity of the light is doubled while keeping its frequency constant, what would be the observed change in the photoelectric current and the maximum kinetic energy of the emitted photoelectrons?

Accepted Answer

A. Photoelectric current doubles, maximum kinetic energy remains constant. — Doubling the intensity of light, while keeping its frequency constant, increases the number of photons incident on the metal surface per unit time. This leads to a proportional increase in the number of emitted photoelectrons, hence doubling the photoelectric current. However, the maximum kinetic energy of the emitted photoelectrons depends solely on the frequency of the incident light and the work function of the metal, remaining unaffected by changes in intensity.

Answer

B. Photoelectric current remains constant, maximum kinetic energy doubles.

Answer

C. Both photoelectric current and maximum kinetic energy double.

Answer

D. Both photoelectric current and maximum kinetic energy remain constant.

Question 4

Types of WBCs:

Accepted Answer

5 — 5 types: neutrophils, lymphocytes, monocytes, eosinophils, basophils.

Answer

3

Answer

7

Answer

10

Question 5

The slogan 'One Caste, One Religion, One God for Man' is associated with:

Accepted Answer

Sree Narayana Guru — Sree Narayana Guru coined 'Oru Jati, Oru Matham, Oru Daivam Manushyanu'.

Answer

Chattambi Swamikal

Answer

Ayyankali

Answer

Vaikunda Swami

Question 6

Which statement accurately describes P waves?‌​‍

Accepted Answer

Faster (primary, compressional, through solid & liquid) — S (secondary, shear) don't travel through liquid — shadow zone proves Earth's outer core is liquid. ‌​‍Surface waves (Rayleigh, Love) cause most damage.

Answer

Surface only

Answer

Slower

Answer

Same speed

Question 7

Zamorin of Calicut ended:‌​‍

Accepted Answer

1792 (Tipu/EIC) — After Anglo-Mysore wars.‌​‍

Answer

1800

Answer

1947

Answer

1857

Question 8

Nematodes are:

Accepted Answer

Pseudocoelomate, cylindrical, unsegmented — Ascaris, Wuchereria (filaria). Sexes separate. Pseudocoelom = cavity from blastocoel (not mesoderm-lined).

Answer

Coelomate, segmented

Answer

Flatworms

Answer

Vertebrates

Question 9

Starch is polymer of:

Accepted Answer

α-glucose (amylose linear, amylopectin branched) — Amylose α-1,4. Amylopectin α-1,4 + α-1,6. Glycogen: similar, more branched (animal storage).

Answer

β-glucose

Answer

Fructose

Answer

Galactose

Question 10

O.N.V. Kurup's literary position:

Accepted Answer

Poet — Renowned Malayalam poet.

Answer

Novelist

Answer

Painter

Answer

Playwright

Plus 2 Lecturer Mixed Practice Test #3