The question asks for the direct cause of the Jallianwala Bagh tragedy. This requires knowledge of the historical context surrounding the event, specifically the legislation that led to widespread protests and the subsequent massacre.
Correct Option: D) The Rowlatt Act. The Jallianwala Bagh tragedy occurred during a peaceful protest against the repressive Rowlatt Act and the arrest of nationalist leaders under its provisions.
Find the coordinates of the point which will divide the line joining the point (2, 4) and (7, 9) internally in the ratio 1 : 2
\(\left(\frac{5}{3},\frac{1}{3}\right)\)
\(\left(\frac{11}{3},\frac{17}{3}\right)\)
\(\left(\frac{3}{8},\frac{3}{11}\right)\)
\(\left(\frac{8}{3},\frac{11}{3}\right)\)
To find the coordinates of a point that divides a line segment internally in a given ratio, we use the section formula. If a point \(P(x, y)\) divides the line segment joining \(A(x_1, y_1)\) and \(B(x_2, y_2)\) internally in the ratio \(m_1 : m_2\), then its coordinates are given by:
\[ x = \frac{m_1 x_2 + m_2 x_1}{m_1 + m_2} \]and
\[ y = \frac{m_1 y_2 + m_2 y_1}{m_1 + m_2} \]Correct Option: B) \[\left(\frac{11}{3},\frac{17}{3}\right)\]
The question asks to identify the component that acts as an interface between a human user and computer hardware. This requires understanding the fundamental roles of various computer system components.
Correct Option: B) operating system — An operating system (OS) is the most crucial software that manages all the hardware and software resources of the computer. It provides a user interface (like a desktop, icons, menus, or a command line) through which users can interact with the computer and its applications. It translates user commands into instructions that the hardware can understand and execute, and it manages the output from the hardware to present it to the user.
The question asks about the primary source of power generation in India. To answer this, we need to recall the current energy mix and dominant power generation methods in the country.
Correct Option: C) Thermal power
Thermal power, predominantly coal-fired, accounts for the largest share of electricity generation in India. As of recent data, coal-based thermal power plants contribute to over 50% of the total installed generation capacity and an even higher percentage of actual electricity generated in the country. This makes it the main source of power generation.
The question asks about the economic model that formed the basis of India's First Five Year Plan. This requires knowledge of the history of economic planning in India and the specific models associated with different plans.
A) Harrod-Domar
The First Five Year Plan (1951-1956) was indeed based on the Harrod-Domar model. This model stressed the role of savings and investment in driving economic growth, which aligned with India's immediate post-independence goals of increasing national income and improving living standards through capital formation.
The question asks for the year when the Indian National Congress (INC) split into two groups at the Surat Session. This event is a significant milestone in India's freedom struggle, marking the division between the Moderates and Extremists within the INC.
B) 1907 — The Indian National Congress split into two factions, the Moderates and the Extremists, during its session held in Surat in 1907. This event is famously known as the Surat Split.
The question asks for the state where Mudumalai National Park is located. This is a factual question related to Indian geography and national parks. Recalling the location of major national parks is key.
Correct Option: D) Tamil Nadu is the correct state where Mudumalai National Park is located.
This question asks us to identify the implicit assumptions in a given statement. An implicit assumption is something that is not directly stated but must be true for the statement to make sense or be valid. We need to analyze each assumption in relation to the main statement.
D) Only II is implicit.
Assumption II provides a logical basis for the statement's recommendation. The idea that children are developmentally ready for school around age 5 is a common underlying principle for such age-based recommendations.
This is a blood relation problem. We need to trace the relationships described in the statement to find out how the woman is related to Rohan. We will start from the last part of the statement and work backward.
Correct Option: D) Mother
To find the LCM (Least Common Multiple) and HCF (Highest Common Factor) of a set of numbers, we first need to express each number as a product of its prime factors. Then, we use these prime factorizations to determine the LCM and HCF.
First, we find the prime factors for each number:
The HCF is the product of the lowest powers of the common prime factors. In this case, the only common prime factor among 12, 15, and 21 is 3.
\[ \text{HCF}(12, 15, 21) = 3^1 = 3 \]The LCM is the product of the highest powers of all prime factors present in the numbers.
So, the LCM is:
\[ \text{LCM}(12, 15, 21) = 2^2 \times 3^1 \times 5^1 \times 7^1 \]\[ \text{LCM}(12, 15, 21) = 4 \times 3 \times 5 \times 7 \]\[ \text{LCM}(12, 15, 21) = 12 \times 35 \]\[ \text{LCM}(12, 15, 21) = 420 \]Therefore, the LCM is 420 and the HCF is 3.
Correct Option: A) 420, 3