Subject :NSO Class : Class 10
Subject :NSO Class : Class 8
Ans 2:
Class : Class 8
This question isn't related to any pleasant or unpleasant sound. Also, if the distance travelled by the sonic vibrations is 2x, time is 2 seconds and speed is 1.5 km/s, the distance= speed*time=1.5*2=3 km. The answer should be 3 km, not 1.5 km. SOF is requested to kindly rectify this error.
Ans 3:
Class : Class 8
Also, B and D can be more musical than A because they change frequently, constituting a pleasant sound, whereas A is a single monotone.
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Subject :NSO Class : Class 10
Ans 6:
Class : Class 10
the answer for this question is option D,since Q is more electropositive than s and thus will lose electrons easily .But in the answer key it is given as optionB.
Ans 7:
Class : Class 6
Q is a metal and S is a non metal, and therefore Q has a greater chance at losing electrons. The correct option is D.
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 3
Ans 4:
Class : Class 4
the question framed incorrectly. It should have been sending wedding card at the earliest
Ans 9:
Class : Class 3
the answer seems incorrect. One can send an invitation through all of the available resources. However, if one wants to send invitation speedily, then the option of Speed Post would be more correct.