Marks
Question : When metal is heated in a flame , the electrons absorb energy and jump to higher energy state. On coming back to lower energy state hey emit light which we can observe in
Option 1: Raman spectra
Option 2: Absorbtion spectra
Option 3: Emission spectra
Option 4: Fluorescence
Correct Answer: Emission spectra
Solution : The correct option is Emission spectra.
Electrons in a metal absorb energy and migrate to higher energy levels when heated. When they return to lower energy levels, they produce light with specified wavelengths, resulting in an emission spectrum that is unique to each element.
Question : Directions: Three statements are given, followed by four conclusions numbered I, II, III, and IV. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: Some trees are leaves. Some leaves are flowers. Some flowers are branches. Conclusions: I. Some trees are flowers. II. Some leaves are branches. III. Some branches are flowers. IV. Some branches are leaves.
Option 1: Only conclusions II and III follow
Option 2: Only conclusions I and II follow
Option 3: Only conclusion III follows
Option 4: None of the conclusions follow
Correct Answer: Only conclusion III follows
Solution : The possible Venn diagram according to the given statements –
Let's analyse the conclusions – Conclusion I: Some trees are flowers – From the above Venn diagram, it is evident that there is no direct relation between trees and flowers. So, no
Question : In an examination, the average marks obtained by John in English, Math, Hindi, and Drawing were 50. His average marks in Math, Science, Social Studies, and Craft were 70. If the average marks in all seven subjects are 58, his score in math is ________.
Option 1: 50
Option 2: 52
Option 3: 60
Option 4: 74
Correct Answer: 74
Solution : The total marks obtained by John in English, Math, Hindi, and Drawing = (50 × 4) = 200 and total marks obtained by John in Math, Science, Social Studies, and Craft = (70 × 4) = 280 Also, the total marks obtained by John in
Question : Directions: Study the following histogram of marks in mathematics (out of 50) of students in a class and answer the following question
If the students have got the marks out of 50 and if an A+ grade has been declared for above 90%, then the number of students who have got A+ grade is:
Option 1: 10
Option 2: 20
Option 3: 30
Option 4: 40
Correct Answer: 10
Solution : As per the given graph, The required class interval for the students has got 90% marks out of 50 marks = 90% of 50 marks = 45 marks From the graph, the required class interval is from 45 to 50. The number of students who
Hello,
I understand how frustrating it is when you can miss passing a subject by just a few marks. However, if you believe there might have been an error in the evaluation then going for revaluation could be a good option But only if you believe you have done well
Question : An engineering student has to secure 25% marks to pass. He gets 47 and fails by 43 marks. What are the maximum marks for the examination?
Option 1: 385 marks
Option 2: 410 marks
Option 3: 360 marks
Option 4: 435 marks
Correct Answer: 360 marks
Solution : Given: An engineering student has to secure 25% marks to pass. He gets 47 and fails by 43 marks. Passing marks = 47 + 43 = 90 If 25% is equivalent to 90 then, 100% is equivalent to (90 × 4) = 360 So,
If you got most of the workings correct in the final account sum of 15 marks in the CA Foundation accounts subject then even if your answer doesn't tally due to a few errors, you can still earn partial marks for the correct workings. The exact marks you'll receive
Question : Select the most appropriate option to substitute the underlined segment in the given sentence. If no substitution is required, select ‘No substitution’.
Kenny asked Sue if she had any idea where his mobile was.
Option 1: if whether she has any ideas
Option 2: No substitution
Option 3: if she have some idea
Option 4: she has any idea about
Correct Answer: No substitution
Solution : The correct choice is the second option.
The sentence requires no substitution because it already contains the correct tense form and conveys the intended meaning that Kenny asked Sue if she knows where his mobile is.
Question : Directions: In a certain code language, BACK is coded as 2325215, and CAME is coded as 2125117. What is the code for GBJH in that code language?
Option 1: 1332711
Option 2: 1323711
Option 3: 1323771
Option 4: 1323111
Correct Answer: 1323711
Solution : Given: BACK is coded as 2325215, and CAME is coded as 2125117.
Subtract the place value of the letters of the BACK from the place value of their opposite letters, to get the required code – B→25 – 2 = 23; A→26 – 1 =
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