[C] Both (i) and (iii) All the distances measured to the right of the origin (along + x-axis) are taken as positive while those measured to the left of the origin (along - x-axis) are taken as negative. Distances measured perpendicular and below the principal axis (along -y-axis) are taken as negatiRead more
[C] Both (i) and (iii)
All the distances measured to the right of the origin (along + x-axis) are taken as positive while those measured to the left of the origin (along – x-axis) are taken as negative.
Distances measured perpendicular and below the principal axis (along -y-axis) are taken as negative.
[B] high concentration of hydroxide ion (OH⁻) and low concentration of hydronium ion (H₃O⁺). Detergents are bases. Bases ionise to form OH⁻ and thus there will be high concentration of OH⁻. BOH → B⁺ + OH⁻
[B] high concentration of hydroxide ion (OH⁻) and low concentration of hydronium ion (H₃O⁺).
Detergents are bases. Bases ionise to form OH⁻ and thus there will be high concentration of OH⁻.
BOH → B⁺ + OH⁻
(B) Shrinkage of cytoplasm in hypertonic medium. Plasmolysis in a plant cell is defined as shrinkage of cytoplasm in hypertonic medium. When a cell is immersed in hypertonic (very concentrated) solution, water diffuses out of the cell by the process of exosmosis. As a result, the cell shrinks. If exRead more
(B) Shrinkage of cytoplasm in hypertonic medium.
Plasmolysis in a plant cell is defined as shrinkage of cytoplasm in hypertonic medium. When a cell is immersed in hypertonic (very concentrated) solution, water diffuses out of the cell by the process of exosmosis. As a result, the cell shrinks. If exosmosis continues in a plant cell, the cytoplasm appears to be shrunken. This is called plasmolysis and the cell is said plasmolysed.
Given below are statements regarding sign conventions for reflection by spherical mirrors. Select the correct statements.
[C] Both (i) and (iii) All the distances measured to the right of the origin (along + x-axis) are taken as positive while those measured to the left of the origin (along - x-axis) are taken as negative. Distances measured perpendicular and below the principal axis (along -y-axis) are taken as negatiRead more
[C] Both (i) and (iii)
See lessAll the distances measured to the right of the origin (along + x-axis) are taken as positive while those measured to the left of the origin (along – x-axis) are taken as negative.
Distances measured perpendicular and below the principal axis (along -y-axis) are taken as negative.
Which of the following statements is correct for the water with detergents dissolved in it?
[B] high concentration of hydroxide ion (OH⁻) and low concentration of hydronium ion (H₃O⁺). Detergents are bases. Bases ionise to form OH⁻ and thus there will be high concentration of OH⁻. BOH → B⁺ + OH⁻
[B] high concentration of hydroxide ion (OH⁻) and low concentration of hydronium ion (H₃O⁺).
See lessDetergents are bases. Bases ionise to form OH⁻ and thus there will be high concentration of OH⁻.
BOH → B⁺ + OH⁻
Plasmolysis in a plant cell is defined as
(B) Shrinkage of cytoplasm in hypertonic medium. Plasmolysis in a plant cell is defined as shrinkage of cytoplasm in hypertonic medium. When a cell is immersed in hypertonic (very concentrated) solution, water diffuses out of the cell by the process of exosmosis. As a result, the cell shrinks. If exRead more
(B) Shrinkage of cytoplasm in hypertonic medium.
See lessPlasmolysis in a plant cell is defined as shrinkage of cytoplasm in hypertonic medium. When a cell is immersed in hypertonic (very concentrated) solution, water diffuses out of the cell by the process of exosmosis. As a result, the cell shrinks. If exosmosis continues in a plant cell, the cytoplasm appears to be shrunken. This is called plasmolysis and the cell is said plasmolysed.
Which of the following are covered by a single membrane?
(B) Vacuole Vacuole are covered by a single membrane while mitochondria, but plastid and mitochondria have double membrane.
(B) Vacuole
See lessVacuole are covered by a single membrane while mitochondria, but plastid and mitochondria have double membrane.