The question asks about the primary factor that can change the state of matter. We need to consider how different physical properties affect whether a substance is a solid, liquid, or gas.
Correct Option: D) Temperature is the primary factor that, when changed, can cause a substance to transition from one state of matter to another (e.g., solid to liquid, liquid to gas, and vice versa).
Select the option that can replace the ? symbol in the following figure.
The problem involves identifying the pattern in the given figure and selecting the option that best completes it. The main focus is on the symmetry and alignment of shapes within the triangle.
Correct Option: B) The pattern in Option B closely matches the symmetry and alignment of lines in the question figure.
The question asks to identify the type of exhibition that the Kochi-Muziris Biennale is. This requires knowledge about the nature and focus of this specific event.
Correct Option: D) Contemporary art
The Kochi-Muziris Biennale is an international exhibition of contemporary art held in Kochi, Kerala. It showcases a wide range of contemporary artistic expressions from artists around the world, making it a significant event in the global art calendar and the largest art exhibition in India.
The chemical formula of sodium carbonate is:
To determine the correct chemical formula for sodium carbonate, we need to recall the valencies of the constituent ions: sodium (Na) and carbonate (CO₃). Then, we apply the criss-cross method of writing chemical formulas, ensuring the overall charge of the compound is neutral.
This formula indicates that two sodium ions are required to balance the charge of one carbonate ion, resulting in a neutral compound.
D) Na₂CO₃ is the correct chemical formula for sodium carbonate, as it correctly balances the +1 charge of two sodium ions with the -2 charge of one carbonate ion.
This is a logical reasoning question where we need to determine which conclusions logically follow from a given statement. The statement indicates an increase in public smoking. We need to evaluate if banning public smoking or creating awareness are logical responses to this increase.
Correct Option: D) Both 1 and 2 follow.
The question asks for the specific year in which the Magna Carta, also known as the Charter of Liberties, was signed in England. This is a direct historical fact recall question.
C) 1215 AD is the correct year when the Magna Carta was signed by King John of England, establishing important legal principles and limiting the power of the monarch.
Which of the given Answer Figures depicts the correct water image of the given Problem Figure?
Problem Figure:
Answer Figures:
To find the correct water image of the given Problem Figure, we need to reflect the figure vertically, as if it is mirrored on a horizontal line.
Correct Option: C) The circle is at the bottom, and the triangles are correctly oriented and positioned.
To find the angle between the hour hand and the minute hand at a given time, we calculate the individual angles of each hand from the 12 o'clock position (which is 0 degrees) and then find the absolute difference between them. The smaller of the two angles is usually required.
The minute hand completes a full circle (360°) in 60 minutes. So, its speed is \(6^\circ\) per minute.
\[ \text{Angle of minute hand} = \text{minutes} \times 6^\circ \]\[ \text{Angle of minute hand at 52 minutes} = 52 \times 6^\circ = 312^\circ \]The hour hand completes a full circle (360°) in 12 hours. So, its speed is \(0.5^\circ\) per minute or \(30^\circ\) per hour.
At 4:52 p.m., the hour hand has moved past 4 o'clock. We need to consider both the hours and the minutes.
\[ \text{Angle of hour hand} = (\text{hours} \times 30^\circ) + (\text{minutes} \times 0.5^\circ) \]\[ \text{Angle of hour hand at 4:52} = (4 \times 30^\circ) + (52 \times 0.5^\circ) \]\[ \text{Angle of hour hand} = 120^\circ + 26^\circ = 146^\circ \]The difference between the angles of the two hands is:
\[ \text{Difference} = |\text{Angle of minute hand} - \text{Angle of hour hand}| \]\[ \text{Difference} = |312^\circ - 146^\circ| = 166^\circ \]The angle calculated above is one of the two angles formed. The other angle is \(360^\circ - \text{Difference}\).
\[ \text{Other angle} = 360^\circ - 166^\circ = 194^\circ \]Comparing \(166^\circ\) and \(194^\circ\), the smaller angle is \(166^\circ\).
D) 166° is the smaller of the two angles formed by the hour hand and the minute hand at 4:52 p.m.
The question asks to identify the international airline that is part of a joint venture with Tata Sons to form Vistara. This requires knowledge of major airline joint ventures in India.
Correct Option: D) Singapore Airlines is the international airline that partnered with Tata Sons to form Vistara.
