NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 679  685 of 1484
Access detailed explanations (illustrated with images and videos) to 1484 questions. Access all new questions we will add tracking exampattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.
Rs. 500.00 or
How to register?
Question number: 679
Question
The angle of elevation of a cloud from a point 120 m above a lake is and the angle of depression of its image in lake is . The height of the cloud is ________.
Choices
Choice (4)  Response  

a.  448.77 m 

b.  378.23 m 

c.  293.67 m 

d.  445.45 m 

Question number: 680
Question
The mean and median for a unimodal data are 67,67.3 respectively then the mode is
Choices
Choice (4)  Response  

a.  69.8 

b.  67.9 

c.  65.6 

d.  71.2 

Question number: 681
Question
A book containing 90 pages is opened at random. The probability that a doublet page is found is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 

Question number: 682
Question
The angle of depression of an object from a tower of height 90 m is . Then the distance of object from tower is ________.
Choices
Choice (4)  Response  

a.  60 m 

b.  15 m 

c.  45 m 

d.  30 m 

Question number: 683
Question
1  10,11  20,21  30, are the classes. The lower limit of the class 21  30 is
Choices
Choice (4)  Response  

a.  21 

b.  30.5 

c.  30 

d.  20.5 

Question number: 684
» Mathematics » Triangles
Question
LMNO is a trapezium in which . P & Q are the mid points of LO and MN. If PQ = 5 cm, ON = 8 cm, then LM = ________.
Choices
Choice (4)  Response  

a.  9 cm 

b.  6.5 cm 

c.  8.5 cm 

d.  13 cm 

Question number: 685
» Mathematics » Coordinate Geometry
Question
The distance of the point from the origin is
Choices
Choice (4)  Response  

a.  units 

b.  units 

c.  units 

d.  All of the above 
