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Posted by Bishal Oram 5 years ago (9703459)
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Posted by Bishal Oram 5 years ago (9703459)
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Posted by Bishal Oram 5 years ago (9703459)
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Posted by Sandra Saji 5 years ago (10082647)
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Posted by Bishal Oram 5 years ago (9703459)
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Posted by Vivek Negi 5 years ago (9224607)
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Muskan Janghu 5 years ago (9980158)
Posted by Anishka Panda 5 years ago (10252135)
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Posted by Leeyong Lepcha 5 years ago (10107578)
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Iqra Siddique Siddique 5 years ago (10201293)
Yogita Ingle 5 years ago (2577571)
Distance = 430 kms
Time = 150/60 = 2.5 hr
Speed = Distance/Time = 430/2.5 = 172 km/hr
Posted by Ronit Saini 5 years ago (10105601)
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Yogita Ingle 5 years ago (2577571)
There is no hard and fast rule about how many class we choose; but as a working rule the number of classes should lie between 5 and 15. It should be noted that the number of classes will be large if we choose small size class intervals and it will be small if the size of class intervals is large.
As an illustration, suppose the range is 70, and we choose classes of width 2 each. We would require 70 ÷ 2 = 35 classes. However, the number of classes would be 14 if the width of each class was 5.
Size of Class Intervals : We may choose all classes of the same width or of different width. In the case of equal class intervals the size of the class interval is determined as soon as we have decided about the number of classes.
Suppose n is the number of classes and all classes are of width h, then n × h = R.
Knowing the range R and number of classes
n we can abtain h = R/n as the width of class interval. If the range is 70 and we choose 10 classes, the width is 7.
Choice of Class Limits : Suppose x is a continuous variable, such that it can take any value in a given range. In that case, it is possible to choose class limits which are not equal to any of the observed values, For example, height of individuals is a continuous variable, even though, in practice, one can measure height to the nearest of the unit value (in centimetres) as 165, 170, 169, 171 .........; or to the nearest of tenth place of decimals as 165.3, 170.4, 168.9, 170.8, ........ We may specify class intervals as 160.55 165.55,165.55 ....... so that none of the observed values of x is equal to any of the class limits.
Posted by Shubham Bisht 5 years ago (8877424)
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Yogita Ingle 5 years ago (2577571)
We have this equation:
x + y = 1
x + y = 1
y = - x + 1
The slope of the tangent here is -1
And the slope of the line perpendicular to the tangent is 1
The line will pass through the focus y = x + c which will pass through (1,1)
The equation for this would be: y = x
The point of intersection of x + y = 1 and x = y can be obtained by:
y + y = 1
2y = 1
y = 1/2
The vertex for this is : (1/2, 1/2)
The distance between the focus and vertex is √[2x(1/2)²] = √2/2
The equation of parabola would be (y -1/2)² = (2x√2) x (x-1/2) y² + 1/4 - y = 2√2*x - √2
= 4y² - 4y - 8 x √2 *x + 4*√2 + 1 = 0
Posted by Ayush Kaumr 5 years ago (11158131)
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Narendra Choudhary 5 years ago (9943151)
Posted by Amandeep Singh Gurjar 5 years ago (10252023)
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Posted by Royal Thakur ? 5 years ago (10134966)
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Koshil Kamboj 5 years ago (1346483)
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Posted by Atul Malik 5 years ago (10251779)
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Tanu Man 5 years ago (9491925)
Rishav Baghel 5 years ago (10139440)
Payal Dhankhar 5 years ago (10222743)
Posted by Anurag Hazra 5 years ago (7732301)
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Yogita Ingle 5 years ago (2577571)
Tut's mummy had always been the center of attraction for the researchers. First of all Tut’s mummy was taken out of its tomb in 1922 by Howard Carter in 1922; he did it to study and research on it.
Second time it was taken out in 1968 to X-ray it.
In the context of the chapter, last time it was taken out on January 5, 2005 to CT scan it.
Posted by Vishal Kumar 5 years ago (10196832)
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Yogita Ingle 5 years ago (2577571)
i. be observed and referred when the need for medical or other services are suspected;
ii. Be guided in an avoiding situation which would aggravate the condition or subject him to unnecessary risks of injury;
iii. Improve neuromuscular skills;
iv. Be provided with opportunities for improved psychological adjustment and social development
Posted by Ritik Bhardwaj 5 years ago (10194241)
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Posted by Kavin .M 5 years ago (7870326)
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Priyanshi Ojha 5 years ago (10256420)
Yogita Ingle 5 years ago (2577571)
Boyle’s Law
- Boyle’s law was stated by Robert Boyle.
- It states that at constanttemperature, the pressure of a fixednumber of moles nof gasvaries inversely with its volume.
k1 = Proportionality constant.
- It depends upon the amount and temperature of gas. It also depends upon the units in which p as well v are expressed.
- Let volume V1 is occupied at pressure P1 and temperature T1.
- Again volume V2 is occupied at pressure P2 and temperature T2. Mathematically, as per Boyle’s law:
P1 V1= P2 V2 = Constant
P1/P2 = V2/V1
Posted by Ranjan Kumari 5 years ago (10180876)
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Muskan Maan 5 years ago (9974792)
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Posted by Ishika Kumari 5 years ago (9352584)
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Posted by Ishika Kumari 5 years ago (9352584)
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Yogita Ingle 5 years ago (2577571)
Only one triad of Dobereiner's triads exists in the columns of Newlands' octaves. The triad formed by the elements Li, Na, and K of Dobereiner's triads also occurred in the columns of Newlands' octaves.
Posted by Sidkhan Sid 5 years ago (10250423)
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Yogita Ingle 5 years ago (2577571)
Dr sadao ensured that the American sailor had left his house but remained safe and secure as he had planned the escape all in advance. With food and additional clothes, he placed his ship on the coast. He asked the American prisoner of war to row and wait for a Korean vessel to move to a small island near the coast.
Dr. Sadao helped the American sailor by offering him a ship, rations, clothes, and even a torch light to show if his supplies were out. He made sure he was powerful enough for the soldier to take his opportunity and save his lives.
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