The question asks to identify the Indian badminton player who won the 2017 French Open Super Series tournament. This requires knowledge of major badminton tournament winners from India in that specific year.
Correct Option: D) Srikanth Kidambi
Srikanth Kidambi won the men's singles title at the 2017 French Open Super Series. He defeated Kenta Nishimoto of Japan in the final. This was one of his four Super Series titles in a stellar 2017 season, which also included the Indonesia Open, Australian Open, and Denmark Open.
The question asks for the term that describes the tendency of objects to resist changes in their state of motion (either at rest or in uniform motion). This is a fundamental concept in physics, specifically Newton's First Law of Motion.
Correct Option: D) inertia
Inertia is the property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force. This perfectly matches the description given in the question.
The question asks to identify the metal that does not react with either cold or hot water. This requires knowledge of the reactivity series of metals and their typical reactions with water at different temperatures.
D) Aluminium does not react with cold or hot water. This is due to the formation of a stable, protective layer of aluminium oxide (\(\text{Al}_2\text{O}_3\)) on its surface, which prevents further reaction with water.
Select the option that will correctly fit in the blank space in the given figure series. 
The problem involves identifying a pattern in a series of diagrams and selecting the option that logically fits in the blank space. The series shows a sequence of shapes that change in a systematic way.
Correct Option: B) The option shows an 'L' shape, which fits the pattern of losing one side at each step.
From the given four figures choose the correct water image of the below figure.
Problem Figures:
Answer Figures:
To find the correct water image of the given figure, we need to reflect the original figure vertically. This means flipping the figure along the horizontal axis.
The water image should have the same pattern of shading, but inverted vertically.
Correct Option: A) The figure in option A correctly shows the inverted positions of the shaded triangles, matching the water image of the original figure.
To find the year in which the calendar will be the same as a given year, we need to determine when the total number of odd days from the given year to a future year becomes a multiple of 7. A calendar repeats when the number of odd days between the two years is zero (or a multiple of 7). We need to consider whether the given year is a leap year or an ordinary year.
A) 2048. The calendar for a leap year repeats after 28 years. Since 2020 is a leap year, its calendar will repeat in \(2020 + 28 = 2048\).
This problem involves the concept of work and time, where the amount of work done is directly proportional to the number of men, days, and hours worked per day. We can use the formula \(M_1 D_1 H_1 / W_1 = M_2 D_2 H_2 / W_2\) to solve this, where \(M\) is the number of men, \(D\) is the number of days, \(H\) is the hours per day, and \(W\) is the amount of work.
The general formula is:
\[ \frac{M_1 D_1 H_1}{W_1} = \frac{M_2 D_2 H_2}{W_2} \]First, calculate the left side:
\[ 16 \times 8 \times 12 = 1536 \]\[ \frac{1536}{1} = \frac{M_2 \times 24 \times 8}{3} \]\[ 1536 = \frac{M_2 \times 192}{3} \]\[ 1536 = M_2 \times 64 \]Therefore, 24 men are needed to complete the second work.
D) 24 men — This is the correct number of men calculated using the work-time formula.
The pH scale measures the acidity or alkalinity of a solution. It is inversely related to the concentration of hydrogen ions (\(\text{H}^+\)) and directly related to the concentration of hydroxide ions (\(\text{OH}^-\)). We need to understand how the pH scale works, specifically what happens when pH increases from 7 to 14.
D) increase in OH⁻ ion concentration — As pH increases from 7 to 14, the solution becomes more basic. Basicity is characterized by a higher concentration of hydroxide ions (\(\text{OH}^-\)). Therefore, an increase in pH from 7 to 14 represents an increase in \(\text{OH}^-\) ion concentration.
The problem asks us to determine which conclusions logically follow from the given statement. The statement establishes a necessary condition for a company to make a profit: both management and employees must work together. This implies that cooperation from both sides is essential.
Correct Option: D) Both 1 and 2 follow
To solve the given mathematical expression, we need to follow the order of operations, often remembered by the acronym BODMAS/PEMDAS. This means we prioritize operations in the following order: Brackets (Parentheses), Orders (Exponents), Division and Multiplication (from left to right), and Addition and Subtraction (from left to right).
C) 21 is the correct answer.
