[C] 8 cm Magnification, m = 3 v = 24 cm, Image distance Object distance, u =? As, m = v/u u = v/m =24/3 = 8 cm Hence, she should put the object at 8 cm from the lens Lâ‚‚.
[C] 8 cm
Magnification, m = 3
v = 24 cm, Image distance
Object distance, u =?
As, m = v/u
u = v/m
=24/3
= 8 cm
Hence, she should put the object at 8 cm from the lens Lâ‚‚.
[C] Sour and change Blue litmus to Red You must know that acid turns blue Litmus solution to red. They have a sour taste as in the case of vinegar and are sticky to touch. Hence, your answer will be option [C].
[C] Sour and change Blue litmus to Red
You must know that acid turns blue Litmus solution to red. They have a sour taste as in the case of vinegar and are sticky to touch. Hence, your answer will be option [C].
(C) Remain at the same position When a nail is inserted in the trunk of a tree at a height of 1 metre from the ground, even after 3 years the nail remains at same level.
(C) Remain at the same position
When a nail is inserted in the trunk of a tree at a height of 1 metre from the ground, even after 3 years the nail remains at same level.
(A) Relatively unspecified and thin walled Parenchyma cells are living and have the power to divide. Cells are round or isodiametric, that is, equally extended on all sides. Cells are oval, round, polygonal or elongated with a thin cell wall.
(A) Relatively unspecified and thin walled
Parenchyma cells are living and have the power to divide. Cells are round or isodiametric, that is, equally extended on all sides. Cells are oval, round, polygonal or elongated with a thin cell wall.
Saraswati did some preliminary experiment with the lenses and found out that the magnification of the eyepiece (Lâ‚‚) is 3. If in her experiment with Lâ‚‚ she found an image at 24 cm from the lens, at what distance did she put the object?
[C] 8 cm Magnification, m = 3 v = 24 cm, Image distance Object distance, u =? As, m = v/u u = v/m =24/3 = 8 cm Hence, she should put the object at 8 cm from the lens Lâ‚‚.
[C] 8 cm
See lessMagnification, m = 3
v = 24 cm, Image distance
Object distance, u =?
As, m = v/u
u = v/m
=24/3
= 8 cm
Hence, she should put the object at 8 cm from the lens Lâ‚‚.
Principal axis is:
[A] imaginary line joining of two centres of curvature
[A] imaginary line joining of two centres of curvature
See lessThe colour of scattered light depends on
[D] None of these
[D] None of these
See lessFrom which structure, the free oxygen gas produced during photosynthesis release?
[B] Stomata
[B] Stomata
See lessStainless steel is a very useful material in our life. In stainless steel, iron is mixed with:
[A] Ni and Cr Stainless steel is an alloy of iron (74%), nickel (8%) and chromium (18%)
[A] Ni and Cr
See lessStainless steel is an alloy of iron (74%), nickel (8%) and chromium (18%)
Which of the followings statements are true for acids ?
[C] Sour and change Blue litmus to Red You must know that acid turns blue Litmus solution to red. They have a sour taste as in the case of vinegar and are sticky to touch. Hence, your answer will be option [C].
[C] Sour and change Blue litmus to Red
See lessYou must know that acid turns blue Litmus solution to red. They have a sour taste as in the case of vinegar and are sticky to touch. Hence, your answer will be option [C].
A nail is inserted in the trunk of a tree at a height of 1 metre from the ground level. After 3 years the nail will
(C) Remain at the same position When a nail is inserted in the trunk of a tree at a height of 1 metre from the ground, even after 3 years the nail remains at same level.
(C) Remain at the same position
See lessWhen a nail is inserted in the trunk of a tree at a height of 1 metre from the ground, even after 3 years the nail remains at same level.
Parenchyma cells are
(A) Relatively unspecified and thin walled Parenchyma cells are living and have the power to divide. Cells are round or isodiametric, that is, equally extended on all sides. Cells are oval, round, polygonal or elongated with a thin cell wall.
(A) Relatively unspecified and thin walled
See lessParenchyma cells are living and have the power to divide. Cells are round or isodiametric, that is, equally extended on all sides. Cells are oval, round, polygonal or elongated with a thin cell wall.
Will copper displace iron form iron sulphate solution? Why?
Copper will not displace iron from iron sulphate solution because copper is less reactive than iron.
Copper will not displace iron from iron sulphate solution because copper is less reactive than iron.
See lessWhat is the colour of oxides of magnesium and sulphur?
Magnesium oxide is a white powder and sulphur dioxide is a colour less gas.
Magnesium oxide is a white powder and sulphur dioxide is a colour less gas.
See less