The question asks to identify the plant tissue responsible for transporting the products of photosynthesis (sugars) from the leaves to other parts of the plant. This involves recalling the functions of various plant tissues, particularly the vascular tissues.
Correct Option: A) Phloem is the vascular tissue specifically designed for the transport of organic food substances (sugars) produced during photosynthesis from the leaves to other parts of the plant, such as roots, stems, and fruits. This process is known as translocation.
In this question, a group of numbers/symbols is coded using letters as per the table given below and the conditions which follow. The correct combination of codes following the conditions is your answer.
| Number/Symbol | 6 | 8 | 4 | + | 5 | # | % | 2 | $ | 1 | ^ | 7 | 9 | * | @ |
| Code | S | U | T | W | N | P | V | D | A | Z | J | M | O | M | Y |
Conditions:
(i) If the first and last elements are numbers, then the last element will be replaced by the symbol @.
(ii) If the first element is a symbol, then the first element will be coded as ©.
(iii) If both the first and second elements are numbers, then the third element will be coded as *.
What will be the code for the following?
5 6 * @ %
To solve this coding problem, we need to first identify the codes for each number/symbol from the given table. Then, we must check the given conditions in order. The conditions modify the coding based on the type and position of the elements. We apply the conditions sequentially to the given sequence "5 6 * @ %" to find the final code.
Correct Option: B) NS*YV
The question asks to identify the correct properties related to the reflection of light by a concave mirror. We need to evaluate each statement individually based on the fundamental laws of reflection and the behavior of light rays with curved mirrors.
C) Both (a) and (b) are incorrect.
Based on the analysis:
If light enters from air to some medium A having a refractive index of 1.33, then what is the speed of light in medium A?
2.67 × 10⁸ \( \frac{m}{s} \)
1.67 × 10⁸ \( \frac{m}{s} \)
2.26 × 10⁸ \( \frac{m}{s} \)
1.97 × 10⁸ \( \frac{m}{s} \)
To find the speed of light in a given medium, we use the definition of the refractive index. The refractive index of a medium is the ratio of the speed of light in a vacuum to the speed of light in that medium.
The refractive index \(n\) of a medium is given by:
\[ n = \frac{c}{v} \]where:
Rounding to two decimal places, we get:
\[ v \approx 2.26 \times 10^8 \frac{m}{s} \]C) \(2.26 \times 10^8 \frac{m}{s}\) is the calculated speed of light in medium A.
The question asks to identify which of the given elements does not exist as a diatomic molecule in nature. This requires knowledge of the common forms in which elements exist naturally, particularly focusing on diatomic molecules.
Correct Option: A) Helium
Helium is a noble gas and exists as individual atoms (monatomic) because its outermost electron shell is full, making it chemically stable and unreactive. It does not form diatomic molecules.
The question asks which solution will turn pH paper blue. pH paper is an indicator used to determine the acidity or alkalinity of a solution. It changes color based on the pH value. Generally, acidic solutions turn pH paper red/orange, neutral solutions show green/yellow, and basic (alkaline) solutions turn it blue/purple.
C) Sodium hydroxide — Sodium hydroxide is a strong base. Basic or alkaline solutions have a pH greater than 7 and turn pH paper blue or purple.
This is a syllogism problem. We will use Venn diagrams to represent the given statements and then check if the conclusions logically follow from these diagrams. We need to consider all possible valid Venn diagram representations.
This means there is an overlap between the set of Rings and the set of Ears.
This means there is an overlap between the set of Rings and the set of Fingers.
This means the entire set of Ears is contained within the set of Noses.
From (1) and (3), since some Rings are Ears and all Ears are Noses, it implies that some Rings are Noses. However, this is not conclusion I.
From (2), some Rings are Fingers. There is no direct relationship established between Fingers and Ears or Fingers and Noses from the given statements.
We know that 'Some Rings are Ears' and 'All Ears are Noses'. This implies 'Some Rings are Noses'. However, it does not necessarily mean 'All Rings are Noses'. There can be Rings that are not Ears and thus not Noses. So, Conclusion I does not necessarily follow.
We know 'Some Rings are Fingers' and 'Some Rings are Ears'. There is no direct or indirect link established between Fingers and Ears. The common element is 'Rings', but the statements are of 'some' type, which does not guarantee an overlap between Fingers and Ears. It is possible that the Rings that are Fingers are completely different from the Rings that are Ears. So, Conclusion II does not necessarily follow.
Since neither conclusion I nor conclusion II logically follows from the given statements, the correct option is D.
Correct Option: D) Neither conclusion (I) nor (II) follows.
If ‘–’ means ‘×’, ‘×’ means ‘+’, ‘+’ means ‘÷’, ‘÷’ means ‘–’, what will come in place of the question mark (?) in the following equation?
5 − 5 ÷ 6 × 6 + 3 = ?
This problem requires us to substitute the given new meanings for mathematical operators into the expression and then evaluate it using the BODMAS/PEMDAS rule (Order of Operations).
The original equation is: \(5 - 5 \div 6 \times 6 + 3 = ?\)
Applying the changes:
So, the new equation is: \(5 \times 5 - 6 + 6 \div 3 = ?\)
The order of operations is:
Our equation is: \(5 \times 5 - 6 + 6 \div 3\)
First, perform Division and Multiplication from left to right:
a) Perform multiplication: \(5 \times 5 = 25\)
The equation becomes: \(25 - 6 + 6 \div 3\)
b) Perform division: \(6 \div 3 = 2\)
The equation becomes: \(25 - 6 + 2\)
Next, perform Addition and Subtraction from left to right:
c) Perform subtraction: \(25 - 6 = 19\)
The equation becomes: \(19 + 2\)
d) Perform addition: \(19 + 2 = 21\)
B) 21 — After substituting the new operator meanings and applying the BODMAS rule, the expression evaluates to 21.
To find the single equivalent discount for successive discounts, we can assume an initial marked price (e.g., 100 units) and apply each discount one by one. Alternatively, we can use a formula for successive discounts.
For two successive discounts \(d_1\) and \(d_2\), the equivalent single discount is given by:
\[ D = d_1 + d_2 - \frac{d_1 \times d_2}{100} \]Applying this for the first two discounts (30% and 20%):B) 49.6 % is the single percentage discount equivalent to three successive discounts of 30%, 20%, and 10%.
The question asks to identify an institute based on its founding year, initial support, and early locations. We need to match these details with the provided options.
D) Tata Institute of Fundamental Research (TIFR) — TIFR was founded in 1945 by Homi J. Bhabha with support from the Sir Dorabji Tata Trust. It started at the Indian Institute of Science, Bangalore, and moved to Bombay in the same year, perfectly aligning with all the facts given in the description.