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The Correct answer is Option 1. 

Key Points

• The new province of Bihar came into force in April 1912. Hence, option 1 is correct.
• It was created after the partition of Bengal and became a separate province from the Bengal Presidency under British rule.
• The province of Bihar was separated from Bengal and became an independent province in April 1912.
• The Bihar and Orissa Province was formed after this partition.
• This change was part of the British administrative reorganization during that time.

The Correct answer is Option 3. 

Key Points

• The Royal Commission on Indian Currency appointed in 1913 was indeed headed by Sir Austin Chamberlain. Hence, option 3 is correct.
• Sir Austin Chamberlain, a British statesman and economist, was the Chairman of the Royal Commission on Indian Currency.
• The commission was tasked with investigating India's currency system and the potential move to the gold standard.
• Its recommendations shaped the currency policy of British India.

The Correct answer is Option 2. 

Key Points

• Solar constant is often approximated as 1.4 kW/m² (kilowatts per square meter). This value is equivalent to 1,400 W/m² and is commonly used as a rounded figure for simplicity in calculations and discussions. Hence, option 2 is correct.
• Key Takeaway:
• Precise value: ~1,366 W/m²
• Approximation: 1.4 kW/m²
• This is the amount of solar energy received per unit area at the top of Earth's atmosphere under ideal conditions.

The Correct answer is Option 3. 

Key Points

• Key Features of the Government of India Act, 1935:
• Reconstruction of the Governor-General’s Executive Council: The Governor-General's council was restructured to include representatives of British India and princely states.
• Provincial Autonomy: Provinces were granted autonomy, allowing them more freedom to legislate and govern in specified areas.
• Proposal for Federation of India: The Act proposed a federation consisting of British India and princely states, though this was never fully implemented.
• Why "Appraisal of the Act" is incorrect:
• "Appraisal of the Act of 1935" implies a review or evaluation, which was not part of its provisions. The Act was intended as a constitutional framework, not a mechanism for self-assessment. Hence, option 3 is correct.

The Correct answer is Option 4. 

Key Points

• Chlorophyll in photosynthesis is used for absorbing light energy.
• Explanation:
• Chlorophyll, the green pigment in plants, plays a crucial role in the process of photosynthesis by:
• Absorbing Light: Chlorophyll absorbs light primarily in the blue and red wavelengths of the visible spectrum, which is essential for driving the photosynthetic process.
• Converting Light Energy: The absorbed light energy is converted into chemical energy in the form of ATP and NADPH during the light-dependent reactions of photosynthesis.
• Facilitating Electron Transfer: Chlorophyll molecules participate in the transfer of electrons, which is a key step in the production of energy-rich compounds.
• Without chlorophyll, plants cannot efficiently harness light energy for photosynthesis. Hence, option 4 is correct.

BPSC deleted this question.

Key Points

• Reason cited by BPSC:
• The debate regarding the STS struggle came up during the Civil Disobedience Movement.
• None of the options is correct.

The correct answer is Option 1.

Key Points

• Raiyati Sarkar – Kheda (Gujarat):
• Incorrect. The Raiyati Sarkar was not established in Kheda. It was actually set up in Bardoli, Gujarat, during the Quit India Movement. The Raiyati Sarkar was a parallel government that was established as a response to the oppressive revenue policies in Gujarat. Hence, option 1 is correct.
• Prati Sarkar – Satara (Maharashtra):
• Correct. The Prati Sarkar was indeed established in Satara, Maharashtra, during the Quit India Movement.
• Praja Mandal – Talcher (Orissa):
• Correct. The Praja Mandal was active in Talcher, Orissa, and was a significant part of the resistance movement during this time.
• Jatiya Sarkar – Tamluk (Bengal):
• Correct. The Jatiy Sarkar was established in Tamluk, Bengal, and was an important part of the Quit India Movement.

The correct answer is Option 4.

Key Points

• The Tesla (T) is the SI unit of magnetic flux density (magnetic field strength).
• It is equivalent to:
• 1 Tesla = 1 Newton per Ampere per meter (N/A·m).

The correct answer is Option 3.

Key Points

• The Nanda Dynasty ruled Magadh (present-day Bihar) after the Shishunaga Dynasty. Hence, option 3 is correct.
• Timeline:
• Shishunaga Dynasty (413–345 BCE):
• The Shishunaga Dynasty came to power after the Haryanka Dynasty.
• The last ruler of the Shishunaga Dynasty was Mahanandin, who was overthrown by Mahapadma Nanda.
• Nanda Dynasty (345–321 BCE):
• Founded by Mahapadma Nanda, who is often described as the "first historical emperor" of India.
• The Nandas expanded their territory and built a strong and centralized state.
• The Nanda rule ended when Chandragupta Maurya, with the help of Chanakya, overthrew Dhana Nanda (the last Nanda king) and established the Maurya Dynasty.

The correct answer is Option 3.

Key Points

• Neelam Sanjiva Reddy is the only person who served as the Speaker of the Lok Sabha prior to his election as the President of India. Hence, option 3 is correct.
• Speaker of Lok Sabha:
• Neelam Sanjiva Reddy served as the Speaker of the Lok Sabha twice:
• 1967–1969 (Fourth Lok Sabha)
• 26 March 1977 – 13 July 1977 (Sixth Lok Sabha).
• President of India:
• He was elected as the 6^th President of India and served from 25^th July 1977 to 24^th July 1982.
• Unique Distinction:
• He is the only person to have held the offices of:
• Speaker of the Lok Sabha, and
• President of India.
• Other Roles:
• Before becoming President, he also served as the Chief Minister of Andhra Pradesh and held various cabinet positions.