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The moon is observed from two diametrically opposite points A and B on Earth the angle theta subtended at moon by the two direction of observations is 1 Degree 54 minutes given the diameter of the earth to be about 1.276 into 10 to the power 7 M compute the distance of the Moon from the Earth

Posted by Rahul Singh 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Hemant Tiwari 7 years, 4 months ago

1 degree 54 minute(60+54)min=114 min`Now 114×60=6840"1"=4.85×10*-6radSo 6840×4.85×10*-6=3.32×10*-2Now D=diameter of earth /angle of parallax10276×10*7/3.32×10*-2=3.843x10^8 m ? 1"=4.85*10^-6 rad

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Date of improvement exam for class 12 2019

Posted by Rishu Kumar 7 years, 4 months ago

CBSE > Class 11 > Physics

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Applications of the concept of impulse

Posted by Devansh Tomar 7 years, 4 months ago

CBSE > Class 11 > Physics

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Find the value of 100J on a system which has 20 CM 250g and 30sec as fundamental units

Posted by Vishakha Sagar 7 years, 4 months ago

CBSE > Class 11 > Physics

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Important topics of ch 1and 2 of physics

Posted by Sharan Benipal 7 years, 4 months ago

CBSE > Class 11 > Physics

2 answers

Kriti Soni 7 years, 4 months ago

In ch 2 projectile and centripetal acceleration is very very very important

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Adarsh Jawale 7 years, 4 months ago

☺☺Dimension of different given quantity, application of dimension, homogenity of dimension, errors, rounding of significant figure, least count, varneir calliper, screw gauge, combination of error, sum, difference, product, division.☺☺ I know only about first chapter. These topics are most important for Jee exam. Trust me.

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What is a parallex method?how to calculate from it

Posted by Gaurav Urkude 7 years, 4 months ago

CBSE > Class 11 > Physics

2 answers

Hemant Tiwari 7 years, 4 months ago

Parallex is the apparent shift in the position of an object with respect to another when we shift our eye sight wise. Φ=arc/radius

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Adarsh Jawale 7 years, 4 months ago

Large distance such as distanceof planet, distance of star cannot be measured by metre scale then we use Parallax method. θ=b/d

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Generator

Posted by Aditya Pandey 7 years, 4 months ago

CBSE > Class 11 > Physics

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What is the resolution of vector in three dimension

Posted by Tony Stark 7 years, 4 months ago

CBSE > Class 11 > Physics

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Shatayu Ganvir 7 years, 4 months ago

Resolving a vector in 3 components along the x axis, y axis and z axis

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Graphical method

Posted by Harinder Singh 7 years, 4 months ago

CBSE > Class 11 > Physics

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Correct defination of direction

Posted by Geetesh Rathore 7 years, 4 months ago

CBSE > Class 11 > Physics

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The angle between the vector (i+j) and (j+k) is:

Posted by Rishita Singh 7 years, 4 months ago

CBSE > Class 11 > Physics

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Shivam Gusain 7 years, 4 months ago

Because (i+i)and (j+j) made angle 0°

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Shivam Gusain 7 years, 4 months ago

Cos 90°

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Lower limit 1 uperlimit 2 integral ( x sqr + 2x ) dx

Posted by Pratham Mishra 7 years, 4 months ago

CBSE > Class 11 > Physics

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A man travels 100m due east with a constant speed of 20m/s he stops there for 5 sec and then return back along the same route with a constant speed of 10m/s calculate the average speed and average velocity of the man

Posted by Dev Sharma 7 years, 4 months ago

CBSE > Class 11 > Physics

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Physics k numerical k liye kon sa channel best rahega ?

Posted by Mr. Thakur 7 years, 4 months ago

CBSE > Class 11 > Physics

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Mr. Thakur 7 years, 4 months ago

Arey channel ka naam batao book ka nhi

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Shreya Gour 7 years, 4 months ago

Hc verma

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Define one light year and AU.

Posted by Mr. Thakur 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Prerna Saxena 7 years, 4 months ago

Light year- it is the distance travelled by light in vacuum in 1 year Au- it is the average distance b/w the centre of sun and earth

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What is the important question in 1,2,3,4, chapters please tell me right answer

Posted by Satyam Tiwari 7 years, 4 months ago

CBSE > Class 11 > Physics

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Nithish .V 7 years, 4 months ago

Everything is important

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Define angle of friction? ....??good night all

Posted by Alia Khan ❤?❤ 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Om Rajyaguru 7 years, 4 months ago

When the body placed on some surface is just on the point of sliding then in that condition the angle between applied force and normal force is called the angle of friction. If phi is angle of friction ,tan (phi)= mu, the coefficient of friction. Angle of friction is defined in the context of motion on inclined plane.

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What is aerial magnfication

Posted by Tarun Kumar 7 years, 4 months ago

CBSE > Class 11 > Physics

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What is linear magnification

Posted by Tarun Kumar 7 years, 4 months ago

CBSE > Class 11 > Physics

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Om Rajyaguru 7 years, 4 months ago

In magnification. Linear (sometimes called lateral or transverse) magnification refers to the ratio of image length to object length measured in planes that are perpendicular to the optical axis.,????

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Projectile fired parallel to horizontal

Posted by Vansh Sharma 7 years, 4 months ago

CBSE > Class 11 > Physics

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Hey guy's ??...here my question ? Define law of friction? ▪☆

Posted by Alia Khan ❤?❤ 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Anargha Pal 7 years, 4 months ago

When an object is moving the friction is proportional and perpendicular to the normal force . Friction is independent of the area of contract so long as there is an area of contract.

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Is there any diduction in sllabus of +1 and +2??

Posted by Sunny Kasnia 7 years, 4 months ago

CBSE > Class 11 > Physics