The question asks to identify the river that flows through a rift valley. Understanding the geological features of Indian rivers is key to answering this question. Rift valleys are formed by tectonic plate movements, leading to a depression in the Earth's surface through which rivers can flow.
D) Tapi: The Tapi (also known as Tapti) river is one of the few major peninsular rivers in India that flows through a rift valley. It flows westward, parallel to the Narmada river, between the Satpura Range to the north and the Ajanta Range to the south, eventually emptying into the Arabian Sea. This rift valley formation is a significant geological feature of the river.
The question asks to identify the river on which the Vidyasagar Setu (also known as the Second Hooghly Bridge) is built. This is a factual question related to Indian geography and infrastructure.
Correct Option: A) The Vidyasagar Setu, also known as the Second Hooghly Bridge, is a cable-stayed bridge over the Hooghly River in West Bengal, India. It connects the city of Kolkata to Howrah. It was commissioned in 1992 and is one of the longest cable-stayed bridges in India.
The question asks for the year in which optical fibre was invented. This is a factual question related to the history of technology. We need to identify the correct historical date for the invention of optical fibre.
Correct Option: C) 1952 — Narinder Singh Kapany and Harold Hopkins successfully demonstrated the transmission of images through a bundle of optical fibres in 1952, which marks the invention of practical optical fibre technology.
The question asks to identify the "Columbus of the space age." This is a metaphorical title given to the first person who achieved a significant milestone in space exploration, akin to Christopher Columbus's role in discovering the Americas. We need to identify the individual who was the first to venture into space.
Yuri Gagarin was a Soviet cosmonaut who, on April 12, 1961, became the first human to journey into outer space, orbiting the Earth aboard the Vostok 1 spacecraft. This monumental achievement marked a new era in human exploration, much like Columbus's voyages opened up new worlds. Therefore, he is often referred to as the "Columbus of the space age."
Correct Option: C) Yuri Gagarin
The question asks to identify the National Highway that connects Delhi and Kolkata. This requires knowledge of the major National Highways in India and their routes.
Correct Option: A) NH - 2
National Highway 2 (NH-2), also known as the Delhi-Kolkata Road, was a major National Highway in India that connected the capital city of Delhi with Kolkata in West Bengal. It was one of the busiest highways in India and formed a significant part of the historic Grand Trunk Road. Although the numbering system for National Highways was changed in 2010, the route connecting Delhi and Kolkata is still a crucial corridor, now largely covered by NH-19.
The question asks to identify the musical instrument associated with the renowned Indian classical musician Amjad Ali Khan. This requires knowledge of famous Indian classical musicians and their primary instruments.
A) Sarod: Amjad Ali Khan is a world-renowned Sarod maestro. His contributions to Indian classical music, particularly with the Sarod, are immense and widely recognized.
The question asks about the constitutional authority responsible for declaring Castes and Tribes as Scheduled Castes and Scheduled Tribes. This involves understanding the specific provisions in the Indian Constitution related to the scheduling of these communities.
C) President of India is the correct answer because Articles 341 and 342 of the Constitution explicitly grant the President the power to specify Scheduled Castes and Scheduled Tribes by public notification.
X, Y, Z started a business by investing 4,000, 8,000 and 10,000. 'X' withdraws from the business after 6 months and 'Z' withdraws after 9 months. At the end of the year the profit is 1,40,000. What is the share of X, Y, Z in the profit respectively?
Rs. 60,000, 64,000, Rs. 16,000 respectively
Rs. 16,000, 64,000, Rs. 60,000 respectively
Rs. 64,000, 60,000, Rs. 16,000 respectively
None of the above
To find the share of each person in the profit, we need to calculate the ratio of their effective investments. The effective investment for each person is calculated by multiplying the amount invested by the duration (in months) for which the investment remained in the business. The total profit will then be distributed among X, Y, and Z in this ratio.
X invested Rs. 4,000 for 6 months.
\[ \text{X's effective investment} = 4000 \times 6 = 24000 \]Y invested Rs. 8,000 for the entire year (12 months).
\[ \text{Y's effective investment} = 8000 \times 12 = 96000 \]Z invested Rs. 10,000 for 9 months.
\[ \text{Z's effective investment} = 10000 \times 9 = 90000 \]Ratio of X : Y : Z effective investments is:
\[ 24000 : 96000 : 90000 \]Divide by 1000 to simplify:
\[ 24 : 96 : 90 \]Divide by 6 to further simplify:
\[ 4 : 16 : 15 \]So, the ratio of their shares in the profit is \(4:16:15\).
The total profit is Rs. 1,40,000.
X's share:
\[ \text{X's share} = \frac{4}{35} \times 140000 = 4 \times 4000 = 16000 \]Y's share:
\[ \text{Y's share} = \frac{16}{35} \times 140000 = 16 \times 4000 = 64000 \]Z's share:
\[ \text{Z's share} = \frac{15}{35} \times 140000 = 15 \times 4000 = 60000 \]Thus, the shares of X, Y, and Z are Rs. 16,000, Rs. 64,000, and Rs. 60,000 respectively.
Correct Option: B) Rs. 16,000, 64,000, Rs. 60,000 respectively
The neutron was discovered by:
The question asks to identify the scientist credited with the discovery of the neutron. This requires knowledge of fundamental discoveries in atomic physics and the scientists associated with them.
Correct Option: A) Chadwick is correctly identified as the discoverer of the neutron in 1932 through his experiments with beryllium and alpha particles, which led to the identification of a neutral particle with mass similar to a proton.
Which of the following produces H2 gas when it reacts with acid?
The question asks which of the given options produces hydrogen gas when it reacts with an acid. This involves understanding the reactivity of elements with acids, specifically the displacement of hydrogen from acids.
A) Zn is a metal more reactive than hydrogen. It reacts with acids to produce hydrogen gas.