The question asks about the hormone responsible for phototropism (bending of plants towards light). This phenomenon is a classic example of plant hormone action, specifically involving differential growth.
Correct Option: C) auxin is the hormone responsible for promoting cell elongation on the shaded side of the shoot, leading to the plant bending towards light.
To determine the most reactive metal among the given options, we need to refer to the reactivity series of metals. The reactivity series lists metals in decreasing order of their reactivity. A metal higher in the series is more reactive than a metal lower in the series.
C) Ca is the most reactive metal among the given options because it is positioned highest in the reactivity series.
This problem involves calculating the annual rate of interest when a sum of money is compounded annually. We will use the compound interest formula to find the rate of interest.
The formula for compound interest is:
\[ A = P \left(1 + \frac{R}{100}\right)^n \]where:We know that \(1331 = 11^3\) and \(1000 = 10^3\). So,
\[ \left(\frac{11}{10}\right)^3 = \left(1 + \frac{R}{100}\right)^3 \]Taking the cube root of both sides gives:\[ \frac{11}{10} = 1 + \frac{R}{100} \]Thus, the rate of interest per annum is 10%.
C) 10% is the correct rate of interest per annum calculated using the compound interest formula.
The question asks for the CEO of the Unique Identification Authority of India (UIDAI) as of February 2018. This is a factual question requiring knowledge of key appointments in Indian government bodies.
A) Ajay Bhushan Pandey was the Chief Executive Officer (CEO) of the Unique Identification Authority of India (UIDAI) as of February 2018. He served in this capacity from July 2016 to October 2019, overseeing the Aadhaar project.
The question asks to identify the actress who won the Kerala State Film Award for Best Actress for her debut film 'Anuraga Karikkin Vellam'. This requires knowledge of Malayalam film awards and specific film details.
Correct Option: A) Rajisha Vijayan won the Kerala State Film Award for Best Actress for her debut film 'Anuraga Karikkin Vellam'.
The problem asks us to identify which of the given assumptions are implicit in the argument: "Use of cell phone is strictly prohibited on the college premises." An implicit assumption is something that is not stated directly but must be true for the argument to hold.
B) Only assumption 2 is implicit. The statement "Use of cell phone is strictly prohibited on the college premises" directly implies that no one is allowed to use a phone there. Assumption 2 is a restatement of the prohibition in terms of allowance.
The question asks to identify the most malleable metal among the given options. Malleability is the property of a metal that allows it to be hammered or rolled into thin sheets without breaking. This property is due to the metallic bonding where layers of atoms can slide past each other.
Correct Option: C) Ag is the most malleable metal among the given options. Silver is known for its excellent malleability and ductility, allowing it to be hammered into very thin sheets.
The question asks to identify the successor to Arundhati Bhattacharya as the Chairman of the State Bank of India (SBI). This is a factual question related to appointments in major public sector banks, which is a common topic in competitive exams.
Correct Option: A) Rajnish Kumar was appointed as the Chairman of the State Bank of India (SBI) in October 2017, succeeding Arundhati Bhattacharya. He served in this role until October 2020.
The interest earned on ₹2,250 at the rate of 3% simple interest per annum for 2 years will be:
The problem asks to calculate the simple interest earned on a principal amount for a given rate and time. We will use the formula for simple interest.
The formula for simple interest is:
\[ \text{SI} = \frac{P \times R \times T}{100} \]Substitute \(P = 2250\), \(R = 3\), and \(T = 2\) into the formula:
\[ \text{SI} = \frac{2250 \times 3 \times 2}{100} \]First, multiply the numerator:
\[ 2250 \times 3 \times 2 = 2250 \times 6 = 13500 \]\[ \text{SI} = \frac{13500}{100} \]\[ \text{SI} = 135 \]The simple interest earned is ₹135.
Correct Option: B) ₹135
Reciprocal of 2 \( \frac{3}{5} \)
3 \( \frac{3}{5} \)
5 \( \frac{3}{2} \)
\( \frac{5}{13} \)
2 \( \frac{3}{5} \)
To find the reciprocal of a mixed fraction, first convert the mixed fraction into an improper fraction. Then, find the reciprocal of the improper fraction by inverting it (swapping the numerator and the denominator).
Correct Option: C) \( \frac{5}{13} \)