A plant with green leaves placed in red light will appear --

A black
B Green
C Red
D Violet

Correct Answer: black

দিনের বেলায় সূর্যালোকে গাছের পাতা সবুজ দেখায় অথচ লাল আলোতে পাতার রং কালো বলে মনে হয়। দিনে গাছের পাতার ক্লোরোফিল সবুজ বাদে অন্য সব বর্ণ শোষণ করে ফলে সবুজ দেখায়। কিন্তু সবুজ পাতা লাল আলোকে শোষণ করে নেয় বলে আর প্রতিফলিত হয় না ফলে লাল আলোতে সবুজ পাতা কালো দেখায়।
Bissoy MCQ
#সাধারণ জ্ঞান #Premier Bank Ltd #Premier Bank Ltd - Junior Officer (Cash) -17.05.2013

Related Questions

There are 87 balls in a jar. Each ball is painted with at least one of two colors, red or green. It is observed that 2/7 of the balls that have red color also have green color, while 3/7 of the balls that have green color also have red color. what fraction of the balls in the jar has both red and green colors?
A 6/14
B 2/7
C 6/35
D 6/29
In three coloured boxes - Red, Green and Blue, 108 balls are placed. There are twice as many balls in the green and red boxes combined as there are in the blue box and twice as many in the blue box as there are in the red box. How many balls are there in the green box ?
A 18
B 36
C 45
D None of these
A plant with green leaves placed in red light will appear--
A black
B green
C red
D violet
A plant with green leaves placed in red light will appear __
A black
B green
C red
D violet
In a bag containing red, green and pink tokens, the ratio of red to green tokens was 5 : 12 while the ratio of pink to red tokens was 7 : 15. What was the ratio of green to pink tokens?
A 25 : 28
B 36 : 7
C 8 :25
D 12 : 7
The green light only ever goes on when tank A is full and tank C isn't empty. The red light is always on unless either tank A isn't Full or tank B is empty. Given that the green light is on, we can conclude all of the following EXCEPT---
A Tank A cannot be empty
B The red light must be on
C Tank C cannot be empty
D we don't have enough information to determine whether tank B is empty or not
The ratio of green marbles to red marbles in a box is 3:5. If there are 24 marbles in the box, how many additional green marbles will be required to make the ratio of green marbles to red marbles 1:1?
A 12
B 9
C 6
D None of the above
A jar contains only marbles of three colors : red, green and yellow. The red and green marbles are in the ratio of 2 : 5 and the yellow and red marbles are in ratio of 5 : 6. which of the following could be the total number of marbles?
A 52
B 64
C 100
D None of these
When red is X, green is Y, when green is not Y blue is Z. But the is never Z as long as red is red is X. which of the following statements is trued in this context?
A while blue is Z, green is Y
B While red is not X, blue is not Z
C while green in not y, red is not X
D None of the above
When red is X, green is Y, When green is not Y, blue is Z, but the is never Z as long as red is red is X. Which of the following statements is true in this context?
A While blue is z, green Y
B While red not X, blue is not Z
C While green is not Y, red is not X
D None of the above

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