Notwithstanding the provisions of subdivision (c) of Section 1253, if an individual is, in all other respects, eligible for benefits under this part, and such individual becomes unable to work due to a physical or mental illness or injury for one or more days during such week, he shall be paid unemployment compensation benefits at the rate of one-seventh the weekly benefit amount payable for that week for each day which he is available for work and able to work. The amount of benefits payable, if not a multiple of one dollar ($1), shall be computed to the next higher multiple of one dollar ($1). The individual shall not be entitled to unemployment compensation benefits for any day during such week which he is unable to work due to such physical or mental illness or injury.