-
The angle of elevation of the sun, when the shadow of the pole is 3 times the height of the pole, is? ...
-
I am doing a project on the GERL system. what are the various subtopics on which I should write? ...
-
Two objects of masses 1 x 10-3 kg and 4 x 10-3 kg have equal momentum. What is the ratio of their kinetic energies? a) 4:1 b) 2:1 c) 16:1 d) √2:1 ...
-
What is the value of tan1tan2tan3...........tan89? ...
-
an {{1}^{o}} an {{2}^{o}} an {{3}^{o}} an {{4}^{o}}............ an {{89}^{o}}= a) 1 b) 0 c) infty d) ½ ...
-
What is the GERL system. Could someone please suggest a site on which i can find lots of info about it? Thanks in advance. ...
-
A line has slope = 3 and passes through (1,1). What is the equation of the line? a) y = x + 3 b) x = y + 3 c) y = 3x -2 d) x = 3y - 2 ...
0·0·
-
If x4 + 1/x4 = 322, find x3 - 1/x3 = 64 76 96 84 ...
-
The value of 〖(2-a)〗3+ 〖(2-b)〗3+ 〖(2-c)〗3- 3(2-a)(2-b)(2-c) when a + b + c = 6, is: 3 -3 2 0 ...
-
The area of a square of side (2x − ay + 3) is A(x) + a2y2 + 2y (2x + 3), where A(x) is a polynomial in the variable x. What is the value of the constant a? Plz tell how to obtain the answer ...
-
Water is to be pumped to fill a tank of volume 30 kL at a height of 40m from the ground in 15 mins by a pump on the ground floor.What is the electric power consumed by the water pump?Efficiency of pump=30%.. Density of water= ...
-
If P(A) = 0.25, P(B) = 0.5, P(A ∩ B) = 0.14, then P(A ∩ (B')) = 0.61 0.39 0.48 0.11 ...
-
Find the radius of the circle inscribed in the square. *Image* 36 cm 24 cm 72 cm 30 cm Go to the site to view the image. ...
-
PN, PM, and AB are tangents to the circle as shown. If PM = 11 in., then find the perimeter of ΔPAB. *Image* 32 in. 27 in. 26 in. 22 in. ...
-
Given the mean (30), the mode (35). What is the median? 30 31.67 40 55.7 ...
-
A triangle ABC is drawn to circumscribe a circle of radius 4 cm such that the segments BD and DC into which BC is divided by the point of contact D are of lengths 8 cm and 6 cm respectively (see given figure). Find the sides ...
-
A circle touches the side BC of a ∆ABC at a point P and touches AB and AC when produced, at Q & R respectively. If AQ = m * (perimeter of ∆ABC), then m = ? 2 1/2 4 1/4 ...
-
CP and CQ are tangents from an external point C to a circle with centre O .AB is another tangent which touches the circle at R and intersects PC and QC at A and B respectively . If CP = 11cm and BR = 4cm, then find the length ...
-
Bohr said that electrons do not lose energy when they accelarate within discrete energy levels?? Why is that?? After all, the electron is still accelarating and according to Maxwell's Electromagnetic Theory, it shoul be givin ...
-
What is thermal De-Broglie wavelength??? Please give a simple explanation. ...
-
In triangle ABC points L and M divide the sides AB and BC in the ratio 2:3 respectively. AM and LC intersect at point P. From point P, a line parallel to BA is drawn intersecting AC at D. Find the ratio AD:DC. Please show how ...
-
If the force exerted by 2 charges of 2μC and x C separated by a distance of 25 cm equals the force exerted by a current carrying conductor of 9A in a magnetic field of 32 Tesla and of length 50 cm at angle 30. Then find the ...
-
Find the force exerted when Current is 5, Magnetic Field Strength is 4 and length is 1/2 m. ...
-
Can two electrons in the same orbital of the same sub-shell of the same energy state have the same energy? Or does different spin affect the energy of an electron?? ...
-
What is thermal De-Broglie wavelength??? Please give a simple explanation. ...
-
As far as I know, we ourselves are electromagnetic radiations with extremely high frequency. Also, the penetration power of an EM radiation increases with its frequency, right. So, why cant we pass through an aluminium foil? ...
-
As far as I know, if something is mass less, it travels with speed of light and if it has mass, it cannot reach the speed of light. According to De Broglie's equation, photons do have mass but yet they travel at the speed of ...
-
A radar is able to detect the reflected waves from an enemy aeroplane after a time interval of 0.02ms. if v= 3X10^8m/s. d= ...
-
A boy stands in front of a tall wall and claps. The boy continues to clap every time an echo is heard. Another boy finds that the time taken between the firs and 51st clap is 18s. v=? 330m/s 340 m/s 333m/s none ...
-
A regular hexagon is inscribed in a circle of radius r cms. What is the perimeter of the regular hexagon? 3r 6r r√72 9r ...
