NTSE Stage1 (StateLevel) ScholasticAptitude & Language Comprehension: Questions 276  281 of 1042
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Question number: 276
» Biology » Heredity and Evolution
Question
Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful
Choices
Choice (4)  Response  

a.  CO _{2} in the air  
b.  solar ultraviolet radiation  
c.  SO _{2} in the air  
d.  solar infrared radiation 
Question number: 277
» Mathematics » Rational Numbers
Question
Ravi can build a wall in the same time in which Mahesh and Suresh together do it. If Ravi and Mahesh together could do it in 10 days and Suresh alone in 15 days. In what time Mahesh alone do it?
Choices
Choice (4)  Response  

a.  30 days  
b.  50 days  
c.  40 days  
d.  60 days 
Question number: 278
» Chemistry » Acid Bases and Salt
Question
Boyle suggested some properties of acid; choose the correct set of them.
Choices
Choice (4)  Response  

a.  Sour taste, corrosive change litmus from red to blue  
b.  Sour taste, slippery change litmus from blue to red  
c.  Sour taste, corrosive change litmus from blue to red  
d.  Sweet taste, slippery change litmus from blue to red 
Question number: 279
» Mathematics » Basic Geometry
Question
If the 3 consecutive vertices of a square are ( 1, 4), ( 3, 0) and (1,  2), which of the following can be its fourth vertex?
Choices
Choice (4)  Response  

a.  (3, 2)  
b.  ( 3, 2)  
c.  (2, 3)  
d.  (1, 2)

Question number: 280
» Physics » Magnetism & Electricity at Work
Question
A current flows in a conductor from East to West. The direction of the magnetic field at a point above the conductor is
Choices
Choice (4)  Response  

a.  towards South  
b.  towards North  
c.  towards East  
d.  towards West 
Question number: 281
» Mathematics » Quadratic Equations
Question
If a and p are the roots of the quadratic equation
. Then, the value of
is equal to
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
