Related Questions

The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as
A Principal point
B Isocenter
C Plumb point
D Perspective centre
Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre?
A -4.33 diopters
B 12.33 diopters
C -12.33 diopters
D 4.33 diopters
The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as
A Ground principal point
B Ground plumb point
C Iso-centre
D Perspective centre
Forty tiles of dimensions 1 foot * 2 foot each are required to completely cover a floor. How many tiles of dimensions 2 foot * 4 foot each would be required to completely cover the same floor?
A 10
B 20
C 80
D 160
স্লাইডে ছবি যুক্ত করার জন্য-i. Insert মেনুর রিবনে picture আইকন click করতে হবেii. Insert picture বক্স থেকে ছবি সংযোগ করতে হবেii. Picture রেডিও বোতাম সক্রিয় করতে হবেনিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
If ‘f’ is the focal length of the camera lens and ‘θ’ is the angle of tilt, the distance of the plumb point from the principal point will be
A f sin θ
B f cos θ
C f tan θ
D f sec θ
Plane P take off at 2:00 am and flies at a constants speed of Xmph. Plane Q takes off at 3:30 am and flies the same forte as plane p but travels at a constant X, how many hours after 3:30 am will plane Q overtake plan P?
A 1.5x/y +0.5
B 2
C 4
D 5
The moment of inertia of a circular lamina of diameter ‘d’, about an axis perpendicular to the plane of the lamina and passing through its centre, is
A $$\frac{{\pi {{\text{d}}^4}}}{{12}}$$
B $$\frac{{\pi {{\text{d}}^4}}}{{16}}$$
C $$\frac{{\pi {{\text{d}}^4}}}{{24}}$$
D $$\frac{{\pi {{\text{d}}^4}}}{{32}}$$
E $$\frac{{\pi {{\text{d}}^4}}}{{36}}$$
I put the camera _______ a tripod so I can take a steady picture.(Select the correct word)
A By
B above
C in
D on
Fill in the gaps : I put the camera ----- a tripod so I can take a steady picture.
A by
B above
C in
D on

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