Related Questions

When a bar of length '$$l$$' and diameter 'd' is rigidly fixed at the upper end and hanging freely, then the total elongation produced in the bar due to its own weight is (where w = Weight per unit volume of the bar)
A $$\frac{{{\text{w}}l}}{{2{\text{E}}}}$$
B $$\frac{{{\text{w}}{l^2}}}{{2{\text{E}}}}$$
C $$\frac{{{\text{w}}{l^3}}}{{2{\text{E}}}}$$
D $$\frac{{{\text{w}}{l^4}}}{{2{\text{E}}}}$$
If flying height of a spacecraft is H, the length of air base is B and the parallax difference between two points is dp, then the difference in height
A $${\text{h}} = \frac{{{\text{dp}}}}{{\frac{{\text{B}}}{{\text{H}}}}}$$
B $${\text{h}} = \frac{{\text{B}}}{{\text{H}}} \times {\text{dp}}$$
C $${\text{h}} = \frac{{{\text{dp}}}}{{\frac{{\text{H}}}{{\text{B}}}}}$$
D $${\text{h}} = {\text{BHbp}}$$
The correction for parallax, is
A - 8".8 cos α
B + .8" sin α
C + 8".8 cos α
D - 8".8 cos α
The difference of parallax for a given difference in elevation is independent of
A Focal length of the camera
B Overall size of the photo graphs
C Percentage of overlap
D All the above
The value of geocentric parallax to be added to the observed altitude of sun is
A 9" cos α
B 9" sin α
C 9" tan α
D 9" cot α
The parallax of a point on the photograph is due to
A Ground elevation
B Flying height
C Length of air base
D All the above
In a right angled triangle the horizontal side measures 8 cm and the vertical side measures 12 cm. What is the area of the triangle?
A 96 sq cm
B 52 sq cm
C 48 sq cm
D 100 sq cm
A rectangular floor that measures 8 meters by 10 meters is to be covered with concept squares that each measures 2 meters by 2 meters. If a carpet square costs to cover 2/3 of the floor?
A ১৬০টাকা
B ১৮০টাকা
C ২৪০টাকা
D ৪৮০টাকা
A rectangular floor that measures 8 metres by 10 metres is to be covered with carpet squares that each measures 2 metres by 2 metres. If a carpet square costs Tk. 12, calculator the total cost cover 2/3 of the floor?
A Tk. 160
B Tk. 240
C Tk. 480
D None of these
The first three angles measures 10% less than the second. The third angle measures 20% more than the sum of the other two. Find the three angles of a triangle.
A 30 degree, 40 degree, 110 degree
B 45 degree, 45 degree, 90 degree
C 35 degree, 45 degree, 100 degree
D 60 degree, 30 degree, 90 degree

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