The question asks for the preferred unit used in scientific literature to express the ratio between two sound intensities. We need to identify the unit specifically designed for this purpose, which is a logarithmic scale.
D) Decibels — Decibels (dB) are the standard logarithmic unit used to express the ratio between two sound intensities. This scale is particularly useful because the human ear perceives sound intensity logarithmically, and the range of sound intensities that the ear can detect is very wide.
Which anniversary of the Meter Convention was celebrated by the Department of Consumer Affairs, Government of India on 20 May 2025?
To determine the anniversary celebrated, we need to know the original signing date of the Meter Convention (also known as the Metre Convention or Treaty of the Metre) and then calculate the difference between the celebration year (2025) and the signing year.
D) 150 th — The Meter Convention was signed on 20 May 1875. Celebrating it on 20 May 2025 marks exactly 150 years since its inception. Therefore, it is the 150th anniversary.
The question asks to identify the type of coast that the western coastal plains of India exemplify. This requires knowledge of coastal geomorphology and the specific characteristics of India's western coast.
Correct Option: B) submerged coast
The western coastal plains of India are considered an example of a submerged coast. This is evidenced by their narrowness, the presence of numerous estuaries (river mouths submerged by the sea), and the geological history indicating a subsidence of land or a rise in sea level relative to the land.
This question tests knowledge about India's renewable energy investment targets. It requires recalling the specific year by which India aims to invest a significant amount in renewable energy and related infrastructure.
Correct Option: D) 2030
The question asks to identify India's first satellite, which was launched in 1975 and will complete 50 years in April 2025. This requires knowledge of key milestones in India's space program.
India's first satellite was named Aryabhata. It was launched on April 19, 1975, by the Soviet Union from Kapustin Yar. This means that in April 2025, it will indeed complete 50 years since its launch.
D) Aryabhata — Aryabhata was India's first satellite, launched on April 19, 1975. It was named after the ancient Indian astronomer Aryabhata. Its launch marked a significant achievement for India's space program and aligns perfectly with the 50-year milestone mentioned in the question.
The question asks to identify the INCORRECT statement about Birsa Munda. We need to evaluate each option based on historical facts related to Birsa Munda's life and movement.
Based on the evaluation, statement C is factually incorrect regarding Birsa Munda's birthplace.
Correct Option: C) Birsa was born in the forests of Madhya Pradesh.
This statement is incorrect. Birsa Munda was born in Ulihatu, a village in the present-day Khunti district of Jharkhand, not Madhya Pradesh.
The question asks for the number of judges per million population in India as per the India Justice Report 2025. This requires knowledge of the specific statistics provided in the report.
Correct Option: D) 15
The question asks for the year of the Industrial Policy Resolution that emphasized the public sector. This requires knowledge of India's economic history and industrial policies.
Correct Option: B) 1956
The Industrial Policy Resolution of 1956 was a landmark policy that formed the basis of the Second Five-Year Plan. It declared that the state would play a predominant role in industrial development, classifying industries into three categories:
This policy clearly established the public sector as the primary engine of industrial growth in India for several decades.
According to the Henley Passport Index released in January 2025, what is India's global passport ranking for 2025?
The question asks for India's global passport ranking for 2025 according to the Henley Passport Index released in January 2025. This requires knowledge of recent current affairs related to international rankings.
A) 85th — The Henley Passport Index, released in January 2025, ranked India's passport at the 85th position globally, offering visa-free access to 62 countries.
The question asks for the specific location and date of the flight trials for the ULPGM-V3 missile. This requires knowledge of recent defense news and missile testing events in India.
Based on defense news reports, the flight trials of the ULPGM-V3 missile were indeed conducted in Andhra Pradesh, specifically in Kurnool, on July 25, 2025.
D) Andhra Pradesh (Kurnool), 25 July 2025 — This option correctly identifies both the location (Kurnool, Andhra Pradesh) and the date (25 July 2025) of the ULPGM-V3 missile flight trials.