HSA Mixed Practice Test #185

Question 1

The Delhi Sultanate was founded in 1206 by:‌​‍

Accepted Answer

Qutb-ud-din Aibak (Mamluk/Slave dynasty) — Aibak, a Turkic slave of Muhammad Ghori, founded the Slave Dynasty in 1206 after Ghori's death. ‌​‍Capital at Lahore, later Delhi.

Answer

Iltutmish

Answer

Balban

Answer

Alauddin Khilji

Question 2

Overseas Citizen of India (OCI) scheme was introduced in:‌​‍

Accepted Answer

2005 — OCI card introduced in 2005 (replacing earlier PIO). ‌​‍Not full citizenship; provides visa-free travel and some economic rights.

Answer

2019

Answer

1947

Answer

1986

Question 3

In an experiment demonstrating the photoelectric effect, it is observed that electrons are only ejected from a metal surface if the incident light's frequency exceeds a specific threshold, irrespective of the light's intensity. Furthermore, for frequencies above this threshold, increasing the light's intensity increases the *number* of ejected electrons, but not their *maximum kinetic energy*. This set of observations provides strong evidence for which of the following?

Accepted Answer

C. The quantum nature of light, where energy is transferred in discrete packets called photons. — Option C accurately reflects that the quantum nature of light, specifically the photon concept (E=hν), is required to explain the observed phenomena of the photoelectric effect. The existence of a threshold frequency implies that energy is transferred in discrete packets (photons), each needing sufficient energy to overcome the metal's work function. Classical wave theory (Option B) fails to explain the threshold frequency and predicts that electron kinetic energy should increase with light intensity, contradicting observations. Options A and D are unrelated or do not provide the fundamental e

Answer

A. The inverse square law governing the intensity of light.

Answer

B. The classical wave theory of light, predicting continuous energy transfer to electrons.

Answer

D. The principle of conservation of momentum in light-matter interactions.

Question 4

Paro is the only international airport in which Asian country?‌​‍

Accepted Answer

Bhutan — Paro International Airport is Bhutan's only international airport.‌​‍

Answer

Nepal

Answer

Bangladesh

Answer

Myanmar

Question 5

The Tripartite Struggle of the 8th–10th centuries was fought over Kannauj between the Palas, Pratiharas and:‌​‍

Accepted Answer

Rashtrakutas — The Palas (Bengal), Pratiharas (Rajputana) and Rashtrakutas (Deccan) fought for Kannauj.‌​‍

Answer

Chalukyas

Answer

Gurjaras

Answer

Cholas

Question 6

T. H. Marshall divided citizenship into:‌​‍

Accepted Answer

Civil, Political, Social — T. ‌​‍H. Marshall (1950) traced citizenship evolution: 18th C civil rights → 19th C political → 20th C social rights.

Answer

National, State, Local

Answer

Economic, Political, Religious

Answer

Legal, Moral, Cultural

Question 7

Synonym of 'confident':‌​‍

Accepted Answer

Assured — Confident = assured, self-assured, self-certain.‌​‍

Answer

Uncertain

Answer

Timid

Answer

Anxious

Question 8

The functional group −COOH is called:

Accepted Answer

Carboxyl — −COOH is the carboxyl group, characteristic of carboxylic acids (e.g., acetic acid).

Answer

Hydroxyl

Answer

Aldehyde

Answer

Ketone

Question 9

84th Amendment:‌​‍

Accepted Answer

LS strength freeze — Freeze on seats (2001).‌​‍

Answer

GST

Answer

Women reservation

Answer

RTI

Question 10

Photoperiodism:

Accepted Answer

Response to day/night length — Flowering response to light duration.

Answer

Water response

Answer

Temperature

Answer

Gravity

HSA Mixed Practice Test #185